Form 8-K - Current report

 

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

_________________

FORM 8-K

_________________

CURRENT REPORT

Pursuant to Section 13 or 15(d)
of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):  November 21, 2023

_______________________________

NORTHERN TECHNOLOGIES INTERNATIONAL CORPORATION

(Exact name of registrant as specified in its charter)

_______________________________

Delaware	001-11038	41-0857886
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)

4201 Woodland Road
P.O. Box 69

Circle Pines, Minnesota 55014

(Address of Principal Executive Offices) (Zip Code)

[phone]

(Registrant's telephone number, including area code)

Not Applicable

(Former name or former address, if changed since last report)

_______________________________

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common stock, par value $0.02 per share	NTIC	Nasdaq Global Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

 

 

Item 2.02. Results of Operations and Financial Condition.

On November 21, 2023, Northern Technologies International Corporation (“NTIC”) announced its consolidated financial results for the fourth fiscal quarter and fiscal year ended August 31, 2023.  A copy of the press release is attached as Exhibit 99.1 to this current report on Form 8-K and the information set forth therein is incorporated herein by reference and constitutes a part of this report.

The information contained in Item 2.02 of this report and Exhibit 99.1 to this report shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and shall not be incorporated by reference into any filings made by NTIC under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as may be expressly set forth by specific reference in such filing.

Item 9.01. Financial Statements and Exhibits.

(d)  Exhibits.

Exhibit No.		Description
99.1		Press Release issued November 21, 2023 (furnished herewith)
104		The Cover Page from this Current Report on Form 8-K, Formatted in Inline XBRL (filed herewith)

 

 

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	NORTHERN TECHNOLOGIES INTERNATIONAL CORPORATION
Date: November 21, 2023	By:	/s/ Matthew C. Wolsfeld
		Matthew C. Wolsfeld
		Chief Financial Officer and Corporate Secretary

 

EXHIBIT 99.1

Northern Technologies International Corporation Reports Financial Results For Fourth Quarter and Full Year Fiscal 2023

MINNEAPOLIS, Nov. 21, 2023 (GLOBE NEWSWIRE) -- Northern Technologies International Corporation (NASDAQ: NTIC), a leading developer of corrosion inhibiting products and services, as well as bio-based and biodegradable polymer resin compounds, today reported its financial results for the fourth quarter and fiscal year ended August 31, 2023.

Full year fiscal 2023 financial and operating highlights include (with growth rates on a fiscal year-over-year basis):

• Consolidated net sales increased 7.7% to a record of $79,903,000
• ZERUST^® industrial net sales increased 2.0% to a record of $53,926,000
• ZERUST^® oil and gas net sales increased 69.3% to a record of $7,802,000
• Natur-Tec^® product net sales increased 8.8% to a record of $18,175,000
• NTIC China net sales decreased 14.5% to $13,469,000
• Joint venture operating income increased 10.9% to $11,642,000
• Net income attributable to NTIC was $2,912,000, compared to $6,325,000
• Net income per diluted share attributable to NTIC was $0.30, compared to $0.66
• Cash provided by operating activities was $5,541,000 for fiscal 2023, compared to $1,146,000 last fiscal year
• Consolidated balance sheet as of August 31, 2023 remained strong with working capital of $22,950,000

“Fiscal 2023 marked NTIC’s third year of consecutive record sales, despite the economic challenges growing in both Europe and China, as well as rising interest rates in the U.S. Our continued sales growth success demonstrates the increasing value we provide our global customers as well as the efficacy of our strategic focus on diversifying our products, end markets and geographies. I am particularly encouraged by the top-line results within the large oil and gas, and compostable plastics markets,” said G. Patrick Lynch, President and CEO of NTIC.

“We will continue to invest strategically in our infrastructure throughout fiscal 2024, to support our long-term geographic expansion. At the same time, we will be navigating the challenges created across our European and Asian markets by evolving geopolitical conflicts. We are watching these markets closely and working with our joint venture partners to improve performance and joint venture profitability. As we enter fiscal 2024, demand within our North American Zerust industrial market remains stable, and we believe we are well positioned to experience continued strength within our ZERUST^® oil and gas and Natur-Tec^® businesses. As a result, we believe fiscal 2024 will be another good year of top-line growth, and improving bottom-line profitability,” concluded Mr. Lynch.

NTIC’s consolidated net sales increased 2.3% to $20,710,000 during the three months ended August 31, 2023, compared to $20,252,000 for the three months ended August 31, 2022. The year-over-year increase in consolidated net sales for the fourth quarter was primarily a result of sales growth within the Company’s ZERUST^® oil and gas and Natur-Tec^® product categories and supported by higher customer demand. For the full year ended August 31, 2023, consolidated net sales increased 7.7% to $79,903,000, compared to $74,159,000 for the prior fiscal year.  

The following tables set forth NTIC’s net sales by product category for the three months and fiscal year ended August 31, 2023, and August 31, 2022, by segment:

	Three Months Ended
	August 31, 2023			% of Net Sales			August 31, 2022			% of Net Sales			% Change
ZERUST® industrial net sales	$	13,421,470		64.8	%		$	13,917,674		68.7	%		(3.6	)%
ZERUST® oil & gas net sales		2,377,472		11.5	%			1,553,314		7.7	%		53.1	%
Total ZERUST® net sales	$	15,798,942		76.3	%		$	15,470,988		76.4	%		2.1	%
Total Natur-Tec® net sales		4,910,693		23.7	%			4,780,929		23.6	%		2.7	%
Total net sales	$	20,709,635		100.0	%		$	20,251,917		100.0	%		2.3	%

	Fiscal Year Ended
	August 31, 2023			% of Net Sales			August 31, 2022			% of Net Sales			% Change
ZERUST® industrial net sales	$	53,926,378		67.5	%		$	52,851,150		71.3	%		2.0	%
ZERUST® oil & gas net sales		7,801,986		9.8	%			4,608,232		6.2	%		69.3	%
Total ZERUST® net sales	$	61,728,364		77.3	%		$	57,459,382		77.5	%		7.4	%
Total Natur-Tec® net sales		18,174,588		22.7	%			16,699,508		22.5	%		8.8	%
Total net sales	$	79,902,952		100.0	%		$	74,158,890		100.0	%		7.7	%

NTIC’s joint venture operating income increased 39.6% to $4,181,000 during the three months ended August 31, 2023, compared to joint venture operating income of $2,996,000 during the three months ended August 31, 2022. The fourth quarter increase in joint venture operating income reflects a one-time gain on the liquidation of a previously written-off investment in the Company’s former joint venture in China, Tianjin Zerust, of $1,986,000, partially offset by decreases in equity income and fees for services correlating to the decrease in joint venture sales. Net sales of NTIC’s joint ventures, which are not consolidated with NTIC’s financial results, decreased 6.6% to $24,157,000 during the three months ended August 31, 2023, compared to $25,859,000 for the three months ended August 31, 2022.

For fiscal 2023, NTIC’s joint venture operating income increased 10.9% to $11,642,000, compared to joint venture operating income of $10,494,000 during the full year ended August 31, 2022. Net sales of NTIC’s joint ventures decreased 3.3% to $100,682,000 during the full year ended August 31, 2023, compared to $104,078,000 for the full year ended August 31, 2022.

Operating expenses, as a percent of net sales, for the fourth quarter of fiscal 2023 were 44.8%, compared to 37.1% for the same period last fiscal year. For the full fiscal year 2023, operating expenses, as a percent of net sales, were 41.8% compared to 38.3% for last fiscal year. Higher operating expenses for the fiscal 2023 fourth quarter and full year were primarily due to increased personnel expenses, other inflationary increases in expenses, and expenses incurred in connection with a new indirect, majority owned subsidiary, formed to assume the operations of a former joint venture in Taiwan.

Net income attributable to NTIC for the fourth quarter of fiscal 2023 was $939,000, or $0.10 per diluted share, compared to net income of $648,000, or $0.07 per diluted share, for the same period last fiscal year. For the full year ended August 31, 2023, net income attributable to NTIC decreased to $2,912,000, or $0.30 per diluted share, compared to net income of $6,325,000, or $0.66 per diluted share, for last fiscal year.

NTIC’s non-GAAP adjusted net income, as set forth in the GAAP reconciliation at the end of this release, was $280,000, or $0.03 per diluted share, for the fourth quarter of fiscal 2023, compared to $753,000, or $0.08 per diluted share, for the same quarter last fiscal year. For the full year ended August 31, 2023, NTIC’s non-GAAP adjusted net income, as set forth in the GAAP reconciliation at the end of this release, was $2,570,000, or $0.27 per diluted share, compared to $3,031,000, or $0.32 per diluted share, for last fiscal year.  

NTIC’s consolidated balance sheet remains strong, with working capital of $22,950,000 as of August 31, 2023, including $5,406,000 in cash and cash equivalents and an outstanding revolving line of credit and term loan balance of $6,357,000 compared to $23,169,000 of working capital as of August 31, 2022, including $5,334,000 in cash and cash equivalents and $6,000 in available for sale securities, and $5,900,000 outstanding line of credit balance.

At August 31, 2023, the Company had $23,706,000 of investments in joint ventures, of which $13,759,000 or 58.0%, is cash, with the remaining balance mostly made up of other working capital.

Restatement of Historical Financial Results

On November 17, 2023, the management and Audit Committee of the Board of Directors of NTIC determined that NTIC’s consolidated financial statements for the three and six months ended February 28, 2023 and three and nine months ended May 31, 2023 require restatement to correct the accounting treatment of employee retention credits and related impacts and disclosures, which credits were incorrectly recognized as income during such periods. The change will result in a decrease to net income attributable to NTIC of $474,000 and $466,000 during the three months ended February 28, 2023 and May 31, 2023, respectively, compared to the same prior year periods.

In the course of preparing its consolidated financial statements for the fiscal year ended August 31, 2023, NTIC determined that although management believes the collection of the employee retention credits are still “more likely than not,” NTIC is not able to deem the receipt of the employee retention credits “probable” under U.S. generally accepted accounting practices, therefore, requiring the restatement of NTIC’s previously issued consolidated financial statements for the three and six months ended February 28, 2023 and three and nine months ended May 31, 2023, and amendments to its related previously filed quarterly reports on Form 10-Q. See a Current Report on 8-K filed by NTIC today with the Securities and Exchange Commission for additional details.

Conference Call and Webcast

NTIC will host a conference call today at 8:00 a.m. Central Time to review its results of operations for the fourth quarter and full fiscal year of 2023 and its outlook, followed by a question-and-answer session. The conference call will be available to interested parties through a webcast. To join the live call and ask a question, a participant must register using the URL below.

https://register.vevent.com/register/BI45a72a6038c049a38fd8fd0906f2e22c

Once registered, the participant will receive a dial-in number and unique PIN number to access the call.

The audio-only webcast can be accessed at the following link: https://edge.media-server.com/mmc/p/zpi7rm3d. A link to the webcast is also available on the Investor Relations section of NTIC’s webpage. Participants are advised to go to the website at least 15 minutes early to register, download and install any necessary audio software. For those unable to participate in the live webcast, a replay of the webcast will be archived and accessible for approximately one year on the Investor Relations section of NTIC’s webpage.

About Northern Technologies International Corporation  

Northern Technologies International Corporation develops and markets proprietary, environmentally beneficial products and services in over 65 countries either directly or via a network of subsidiaries, joint ventures, independent distributors and agents. NTIC’s primary business is corrosion prevention marketed mainly under the ZERUST® brand. NTIC has been selling its proprietary ZERUST® rust and corrosion inhibiting products and services to the automotive, electronics, electrical, mechanical, military and retail consumer markets for almost 50 years and more recently has also targeted and expanded into the oil and gas industry. NTIC offers worldwide on-site technical consulting for rust and corrosion prevention issues. NTIC’s technical service consultants work directly with the end users of NTIC’s products to analyze their specific needs and develop systems to meet their technical requirements. NTIC also markets and sells a portfolio of bio-based and biodegradable polymer resin compounds and finished products marketed under the Natur-Tec® brand.

Forward-Looking Statements  

Statements contained in this release that are not historical information are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Such statements include NTIC’s expectations that it will invest strategically in its infrastructure throughout fiscal 2024 and navigate the evolving challenges created across its European and Asian markets by evolving geopolitical conflicts and its belief that it is well positioned to experience continued strength within its ZERUST® oil and gas and Natur-Tec® businesses and that fiscal 2024 will be another good year of top-line growth and improving bottom-line profitability, and other statements that can be identified by words such as “believes,” “continues,” “expects,” “anticipates,” “intends,” “potential,” “outlook,” “will,” “may,” “would,” “should,” “guidance” or words of similar meaning, and the use of future dates. Such forward-looking statements are based upon the current beliefs and expectations of NTIC’s management and are inherently subject to risks and uncertainties that could cause actual results to differ materially from those projected or implied. Such potential risks and uncertainties include, but are not limited to, in no particular order: the health of the U.S. and worldwide economies, including in particular the U.S. automotive industry and its evolution towards electric vehicles; the effect of economic uncertainty, recessionary indicators, inflation, increased interest rates and turmoil in the global credit, financial and banking markets or perception thereof; effect of supply chain disruptions; effect of COVID-19; dependence on joint ventures, relationships with joint venture partners and their success, including fees and dividend distributions; risks associated with international operations, including NTIC China, exposure to exchange rate fluctuations, tariffs and trade disputes; effect of economic slowdown and political unrest, including the Russia and Ukraine war and the Israel and Hamas conflict; the level of growth in NTIC’s markets; NTIC’s investments in research and development efforts; acceptance of existing and new products; timing of purchase orders under supply contracts; variability in sales to oil and gas customers and effect on quarterly financial results; increased competition; costs and effects of complying with changes in tax, fiscal, government and other regulatory policies, and rules relating to environmental, health and safety matters; and NTIC’s reliance on its intellectual property rights and the absence of infringement of the intellectual property rights of others. More detailed information on these and additional factors which could affect NTIC’s operating and financial results is described in NTIC’s filings with the Securities and Exchange Commission, including its annual report on Form 10-K for the fiscal year ended August 31, 2022 and subsequent quarterly reports on Form 10-Q. NTIC urges all interested parties to read these reports to gain a better understanding of the many business and other risks that it faces. Additionally, NTIC undertakes no obligation to publicly release the results of any revisions to these forward-looking statements, which may be made to reflect events or circumstances occurring after the date hereof or to reflect the occurrence of unanticipated events.

Use of Non-GAAP Financial Measures

In addition to the financial measures prepared in accordance with U.S. generally accepted accounting principles (GAAP), this release contains non-GAAP financial measures, including adjusted net income attributable to NTIC and adjusted net income attributable to NTIC per diluted share. NTIC’s reasons for use of these measures, reconciliations of these non-GAAP financial measures to the most directly comparable GAAP measures and other information are included at the end of this release. Non-GAAP financial measures have limitations as analytical tools and should not be considered in isolation or as a substitute for NTIC’s financial results prepared in accordance with GAAP.

NORTHERN TECHNOLOGIES INTERNATIONAL CORPORATION AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS - AUGUST 31, 2023 AND 2022
			August 31, 2023				August 31, 2022
ASSETS
CURRENT ASSETS:
	Cash and cash equivalents		$	5,406,173			$	5,333,890
	Available for sale securities			-				5,590
	Receivables:
	Trade excluding joint ventures, less allowance for doubtful accounts of $533,000 and $439,000 as of August 31, 2023 and 2022, respectively			15,645,130				14,136,930
	Trade, joint ventures			187,912				697,861
	Fees for services provided to joint ventures			1,296,594				1,765,117
	Dividend receivable from joint venture			1,986,027				-
	Income taxes			34,202				-
	Inventories			13,096,489				16,341,729
	Prepaid expenses			2,019,029				1,953,764
	Total current assets			39,671,556				40,234,881
PROPERTY AND EQUIPMENT, NET				14,065,354				12,170,493
OTHER ASSETS:
	Investments in joint ventures			23,705,714				21,814,754
	Deferred income tax, net			530,944				-
	Intangible asset, net			5,500,733				5,923,867
	Goodwill			4,782,376				4,782,376
	Patents and trademarks, net			658,752				710,011
	Operating lease right of use assets			428,874				557,571
	Total other assets			35,607,393				33,788,579
	Total assets		$	89,344,303			$	86,193,953
LIABILITIES AND EQUITY
CURRENT LIABILITIES:
	Line of credit		$	3,600,000			$	5,900,000
	Term loan			2,757,176				-
	Accounts payable			6,056,329				7,796,494
	Income taxes payable			13,053				30,742
	Accrued liabilities:
	Payroll and related benefits			2,305,400				2,297,543
	Other			1,648,615				667,292
	Current portion of operating leases			340,799				373,330
	Total current liabilities			16,721,372				17,065,401
	LONG-TERM LIABILITIES:
	Deferred income tax, net			1,836,059				1,700,015
	Operating leases, less current portion			88,075				184,241
	Total long-term liabilities			1,924,134				1,884,256
COMMITMENTS AND CONTINGENCIES
EQUITY:
	Preferred stock, no par value; authorized 10,000 shares; none issued and outstanding			—				—
	Common stock, $0.02 par value per share; authorized 15,000,000 shares; issued and outstanding 9,424,101 and 9,232,483, respectively			188,482				184,650
	Additional paid-in capital			21,986,767				19,939,131
	Retained earnings			51,004,427				50,716,613
	Accumulated other comprehensive loss			(6,823,403	)			(7,245,132	)
	Stockholders’ equity			66,356,273				63,595,262
	Non-controlling interests			4,342,524				3,649,034
	Total equity			70,698,797				67,244,296
	Total liabilities and equity		$	89,344,303			$	86,193,953

NORTHERN TECHNOLOGIES INTERNATIONAL CORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED)
FOR THE THREE AND TWELVE MONTHS ENDED AUGUST 31, 2023 AND 2022
	Three Months Ended								Twelve Months Ended
	August 31, 2023				August 31, 2022				August 31, 2023				August 31, 2022
NET SALES:
Net Sales	$	20,709,635			$	20,251,917			$	79,902,952			$	74,158,890
Cost of goods sold		13,141,849				14,112,679				52,099,121				51,090,298
Gross profit		7,567,786				6,139,239				27,803,831				23,068,592
JOINT VENTURE OPERATIONS:
Equity in income of joint ventures		2,787,926				1,063,740				6,452,719				4,725,918
Fees for services provided to joint ventures		1,393,323				1,931,927				5,189,185				5,767,682
Total joint venture operations		4,181,249				2,995,667				11,641,904				10,493,600
OPERATING EXPENSES:
Selling expenses		4,294,594				3,378,723				15,290,897				13,038,180
General and administrative expenses		3,695,837				2,924,981				13,166,270				10,600,603
Research and development expenses		1,287,676				1,217,897				4,967,922				4,775,334
Total operating expenses		9,278,107				7,521,601				33,425,089				28,414,117
OPERATING INCOME		2,470,929				1,613,305				6,020,646				5,148,075
REMEASUREMENT GAIN ON ACQUISITION OF EQUITY METHOD INVESTEE		—				—				—				3,951,550
INTEREST INCOME		9,995				12,464				28,490				49,241
INTEREST EXPENSE		(119,162	)			(55,017	)			(461,805	)			(89,096	)
INCOME BEFORE INCOME TAX EXPENSE		2,361,761				1,570,752				5,587,331				9,059,770
INCOME TAX EXPENSE		514,777				613,399				1,349,600				1,873,836
NET INCOME		1,846,984				957,353				4,237,731				7,185,934
NET INCOME ATTRIBUTABLE TO NON-CONTROLLING INTERESTS		908,037				309,426				1,325,455				861,234
NET INCOME ATTRIBUTABLE TO NTIC	$	938,947			$	647,927			$	2,912,276			$	6,324,700
NET INCOME ATTRIBUTABLE TO NTIC PER COMMON SHARE:
Basic	$	0.10			$	0.07			$	0.31			$	0.69
Diluted	$	0.10			$	0.07			$	0.30			$	0.66
WEIGHTED AVERAGE COMMON SHARES
ASSUMED OUTSTANDING:
Basic		9,384,873				9,232,483				9,359,504				9,216,216
Diluted		9,680,285				9,508,440				9,693,482				9,635,028
CASH DIVIDENDS DECLARED PER COMMON SHARE	$	0.07			$	0.07			$	0.28			$	0.28

NORTHERN TECHNOLOGIES INTERNATIONAL CORPORATION AND SUBSIDIARIES
RECONCILIATION OF GAAP TO NON-GAAP MEASURES
(UNAUDITED, IN THOUSANDS, EXCEPT SHARE AND PER SHARE AMOUNTS)

The accompanying press release contains certain non-GAAP financial measures, including adjusted net income attributable to NTIC and adjusted net income attributable to NTIC per diluted share, which are not calculated or presented in accordance with accounting principles generally accepted in the United States (GAAP). These non-GAAP financial measures are information supplemental and in addition to the financial measures presented in the accompanying release that are calculated and presented in accordance with GAAP. NTIC uses non-GAAP financial measures as supplemental measures of performance and believes these measures facilitate operating performance comparisons from period to period and company to company by factoring out potential differences caused by non-recurring, unusual or infrequent charges not related to NTIC’s regular, ongoing business. NTIC also believes that the presentation of certain non-GAAP financial measures provides useful information to investors in evaluating the company’s operations, period over period. Such non-GAAP financial measures should not be considered superior to, as a substitute for, or as an alternative to, and should be considered in conjunction with, the GAAP financial measures presented in the release. The non-GAAP financial measures in the accompanying release may differ from similar measures used by other companies.

The following is a reconciliation of NTIC’s reported net income attributable to NTIC and reported net income attributable to NTIC per diluted common share to adjusted net income attributable to NTIC and adjusted net income attributable to NTIC per diluted common share, in each case, as adjusted to exclude the net one-time gain related to the acquisition of the remaining 50% ownership interest of ZERUST® India, a one-time gain on the liquidation of a previously written-off investment in NTIC’s former joint venture in China, Tianjin Zerust (TZ liquidation), and certain other adjustments as described below.

	Three Months Ended August 31,							Twelve Months Ended August 31,
		2023				2022			2023				2022
Net income attributable to NTIC, as reported	$	938,947			$	647,927		$	2,912,276			$	6,324,700
Adjustments for adjusted net income:
Equity income from TZ liquidation		(1,986,027	)			-			(1,986,027	)			-
Legal fees from TZ liquidation		95,890				-			95,890				-
Withholding tax on TZ liquidation		198,603				-			198,603				-
Minority interest impact from TZ liquidation		676,614				-			676,614				-
Bonus expense impact from TZ liquidation		250,000				-			250,000				-
Expenses related to Zerust India transaction		-				-			-				115,000
Gain on purchase of Zerust India		-				-			-				(4,612,638	)
Cumulative foreign currency adjustment		-				-			-				661,088
Amortization expense		105,783				105,350			423,132				421,400
Tax impact of adjusted items		-				-			-				121,000
Non-GAAP adjusted net income	$	279,810			$	753,277		$	2,570,488			$	3,030,550
Weighted average shares outstanding (diluted)		9,680,285				9,508,440			9,693,482				9,635,028
Diluted net income per share, as reported		0.10				0.07			0.30				0.66
Adjustments for adjusted net income, net of tax impact, per diluted share 1		(0.07	)			0.01			(0.03	)			(0.34	)
Non-GAAP diluted adjusted net income per share	$	0.03			$	0.08		$	0.27			$	0.32
1 Includes adjustments related to the items noted above, net of tax

                                                        
Investor and Media Contact:
Matthew Wolsfeld, CFO
NTIC
[phone]

Cover	Nov. 21, 2023
Cover [Abstract]
Document Type	8-K
Amendment Flag	false
Document Period End Date	Nov. 21, 2023
Entity File Number	001-11038
Entity Registrant Name	NORTHERN TECHNOLOGIES INTERNATIONAL CORPORATION
Entity Central Index Key	0000875582
Entity Tax Identification Number	41-0857886
Entity Incorporation, State or Country Code	DE
Entity Address, Address Line One	4201 Woodland RoadP.O. Box 69
Entity Address, City or Town	Circle Pines
Entity Address, State or Province	MN
Entity Address, Postal Zip Code	55014
City Area Code	763
Local Phone Number	225-6600
Written Communications	false
Soliciting Material	false
Pre-commencement Tender Offer	false
Pre-commencement Issuer Tender Offer	false
Title of 12(b) Security	Common stock, par value $0.02 per share
Trading Symbol	NTIC
Security Exchange Name	NASDAQ
Entity Emerging Growth Company	false

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