Northern Technologies International (NTIC) 10-Q 8 Apr 22 2022 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Feb. 28, 2022	Apr. 05, 2022
Document Information [Line Items]
Entity Central Index Key	0000875582
Entity Registrant Name	Northern Technologies International Corporation
Amendment Flag	false
Current Fiscal Year End Date	--08-31
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2022
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Feb. 28, 2022
Document Transition Report	false
Entity File Number	001-11038
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	41-0857886
Entity Address, Address Line One	4201 Woodland Road
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
Title of 12(b) Security	Common stock, par value $0.02 per share
Trading Symbol	NTIC
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		9,221,517

Consolidated Balance Sheets (Cu

Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Feb. 28, 2022	Aug. 31, 2021
CURRENT ASSETS:
Cash and cash equivalents	$ 7,487,811	$ 7,680,641
Available for sale securities	4,634	4,634
Receivables:
Trade, excluding joint ventures, less allowance for doubtful accounts of $382,000 as of February 28, 2022 and August 31, 2021	12,457,917	11,128,805
Trade, joint ventures	905,961	624,808
Fees for services provided to joint ventures	1,078,702	1,505,127
Income taxes	570,483	386,574
Inventories	12,978,217	11,114,207
Prepaid expenses	3,113,898	1,302,293
Total current assets	38,597,623	33,747,089
PROPERTY AND EQUIPMENT, NET	12,336,699	11,821,458
OTHER ASSETS:
Investments in joint ventures	21,852,070	27,623,768
Deferred income taxes	0	92,554
Goodwill	4,782,376	0
Operating lease right of use asset	528,645	376,438
Total other assets	34,016,329	28,802,332
Total assets	84,950,651	74,370,879
CURRENT LIABILITIES:
Accounts payable	5,948,430	4,290,972
Line of credit	4,200,000	0
Income taxes payable	152,183	178,923
Accrued liabilities:
Payroll and related benefits	1,694,506	2,879,468
Other	1,091,861	894,497
Current portion of operating lease	184,206	272,336
Total current liabilities	13,271,186	8,516,196
LONG-TERM LIABILITIES:
Deferred income tax, net	1,897,259	0
Operating lease, less current portion	344,439	104,102
Total long-term liabilities	2,241,698	104,102
COMMITMENTS AND CONTINGENCIES (Note 14)
EQUITY:
Preferred stock, no par value; authorized 10,000 shares; none issued and outstanding	0	0
Common stock, $0.02 par value per share; authorized 15,000,000 shares as ofFebruary 28, 2022 and August 31, 2021; issued and outstanding 9,221,517 and 9,184,811, respectively	184,430	183,696
Additional paid-in capital	19,379,032	18,736,268
Retained earnings	50,361,066	46,973,092
Accumulated other comprehensive loss	(3,858,689)	(3,525,030)
Stockholders’ equity	66,065,839	62,368,026
Non-controlling interests	3,371,928	3,382,555
Total equity	69,437,767	65,750,581
Total liabilities and equity	84,950,651	74,370,879
Patents and Trademarks [Member]
OTHER ASSETS:
Intangible assets, net	717,805	709,572
Intangible Assets Excluding Patents and Trademarks [Member]
OTHER ASSETS:
Intangible assets, net	$ 6,135,433	$ 0

Consolidated Balance Sheets (_2

Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($)	Feb. 28, 2022	Aug. 31, 2021
Trade receivable excluding joint ventures, allowance for doubtful accounts	$ 382,000	$ 382,000
Preferred stock, par value (in dollars per share)	$ 0	$ 0
Preferred stock, shares authorized (in shares)	10,000	10,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.02	$ 0.02
Common stock, shares authorized (in shares)	15,000,000	15,000,000
Common stock, shares issued (in shares)	9,221,517	9,184,811
Common stock, shares outstanding (in shares)	9,221,517	9,184,811

Consolidated Statements of Oper

Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022		Feb. 28, 2021
NET SALES:
Net sales, excluding joint ventures	$ 15,865,128	$ 12,255,941	$ 33,218,102		$ 24,454,749
Net sales, to joint ventures	883,511	526,941	1,723,950		1,107,245
Total net sales	16,748,639	12,782,882	34,942,052		25,561,994
Cost of goods sold	11,764,304	8,531,679	24,254,787	[1]	16,845,000	[1]
Gross profit	4,984,335	4,251,203	10,687,265		8,716,994
JOINT VENTURE OPERATIONS:
Equity in income from joint ventures	922,832	1,920,012	2,297,581		3,745,724
Fees for services provided to joint ventures	1,246,909	1,462,684	2,505,767		2,799,245
Total joint venture operations	2,169,741	3,382,696	4,803,348		6,544,969
OPERATING EXPENSES:
Selling expenses	2,971,391	2,832,008	6,209,149		5,573,776
General and administrative expenses	2,518,788	1,958,974	5,115,135		4,052,956
Research and development expenses	1,218,674	1,075,180	2,454,495		2,150,917
Total operating expenses	6,708,853	5,866,162	13,778,779		11,777,649
OPERATING INCOME	445,223	1,767,737	1,711,834		3,484,314
REMEASUREMENT GAIN ON ACQUISITION OF EQUITY METHOD INVESTEE	0	0	3,951,550		0
INTEREST INCOME	9,909	15,638	20,852		85,176
INTEREST EXPENSE	(7,404)	(5,249)	(10,295)		(7,617)
INCOME BEFORE INCOME TAX EXPENSE	447,728	1,778,126	5,673,941		3,561,873
INCOME TAX EXPENSE	151,743	274,660	656,123		653,250
NET INCOME	295,985	1,503,466	5,017,818		2,908,623
NET INCOME ATTRIBUTABLE TO NON-CONTROLLING INTERESTS	113,138	190,891	341,212		333,649
NET INCOME ATTRIBUTABLE TO NTIC	$ 182,847	$ 1,312,575	$ 4,676,606		$ 2,574,974
NET INCOME ATTRIBUTABLE TO NTIC PER COMMON SHARE:
Basic (in dollars per share)	$ 0.02	$ 0.14	$ 0.51		$ 0.28
Diluted (in dollars per share)	$ 0.02	$ 0.13	$ 0.48		$ 0.26
WEIGHTED AVERAGE COMMON SHARES ASSUMED OUTSTANDING:
Basic (in shares)	9,214,817	9,104,636	9,211,858		9,104,623
Diluted (in shares)	9,683,426	9,867,918	9,736,060		9,756,268
Amount (in dollars per share)	$ 0.07	$ 0.065	$ 0.14		$ 0.065
[1]	The percent of segment sales is calculated by dividing the direct cost of goods sold for each individual segment category by the net sales for each segment category.

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022	Feb. 28, 2021
Net income	$ 295,985	$ 1,503,466	$ 5,017,818	$ 2,908,623
OTHER COMPREHENSIVE INCOME (LOSS) –FOREIGN CURRENCY TRANSLATION ADJUSTMENT	26,295	196,341	(382,769)	495,006
COMPREHENSIVE INCOME	322,280	1,699,807	4,635,049	3,403,629
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO NON-CONTROLLING INTERESTS	(136,037)	177,117	(292,102)	387,780
COMPREHENSIVE INCOME ATTRIBUTABLE TO NTIC	$ 458,317	$ 1,522,690	$ 4,927,151	$ 3,015,849

Consolidated Statements of Equi

Consolidated Statements of Equity (Unaudited) - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Noncontrolling Interest [Member]	Total
BALANCE (in shares) at Aug. 31, 2020	9,099,990
BALANCE at Aug. 31, 2020	$ 182,000	$ 17,415,043	$ 42,472,810	$ (3,410,438)	$ 3,045,026	$ 59,704,441
Stock option expense	0	342,504	0	0	0	342,504
Dividends paid to stockholders	0	0	(591,802)	0	0	(591,802)
Dividend received by non-controlling interest	0	0	0	0	(200,000)	(200,000)
Net income	0	0	2,574,974	0	333,649	2,908,623
Other comprehensive income	$ 0	0	0	440,875	54,131	495,006
Stock issued for employee stock purchase plan (in shares)	4,646
Stock issued for employee stock purchase plan	$ 93	36,099	0	0	0	36,192
BALANCE (in shares) at Feb. 28, 2021	9,104,636
BALANCE at Feb. 28, 2021	$ 182,093	17,793,646	44,455,982	(2,969,563)	3,232,806	62,694,964
BALANCE (in shares) at Nov. 30, 2020	9,104,636
BALANCE at Nov. 30, 2020	$ 182,093	17,632,811	43,735,209	(3,179,678)	3,255,689	61,626,124
Stock option expense	0	160,835	0	0	0	160,835
Dividends paid to stockholders	0	0	(591,802)	0	0	(591,802)
Dividend received by non-controlling interest	0	0	0	0	(200,000)	(200,000)
Net income	0	0	1,312,575	0	190,891	1,503,466
Other comprehensive income	$ 0	0	0	210,115	(13,774)	196,341
BALANCE (in shares) at Feb. 28, 2021	9,104,636
BALANCE at Feb. 28, 2021	$ 182,093	17,793,646	44,455,982	(2,969,563)	3,232,806	62,694,964
BALANCE (in shares) at Aug. 31, 2021	9,184,811
BALANCE at Aug. 31, 2021	$ 183,696	18,736,268	46,973,092	(3,525,030)	3,382,555	65,750,581
Stock options exercised (in shares)	34,071
Stock options exercised	$ 681	138,519	0	0	0	139,200
Stock option expense	0	465,766	0	0	0	465,766
Dividends paid to stockholders	0	0	(1,288,632)	0	0	(1,288,632)
Dividend received by non-controlling interest	0	0	0	0	(302,729)	(302,729)
Net income	0	0	4,676,606	0	341,212	5,017,818
Other comprehensive income	$ 0	0	0	(333,659)	(49,110)	(382,769)
Stock issued for employee stock purchase plan (in shares)	2,635
Stock issued for employee stock purchase plan	$ 53	38,479	0	0	0	38,532
BALANCE (in shares) at Feb. 28, 2022	9,221,517
BALANCE at Feb. 28, 2022	$ 184,430	19,379,032	50,361,066	(3,858,689)	3,371,928	69,437,767
BALANCE (in shares) at Nov. 30, 2021	9,203,446
BALANCE at Nov. 30, 2021	$ 184,069	19,146,510	50,823,730	(3,862,085)	3,338,620	69,630,844
Stock options exercised (in shares)	18,071
Stock options exercised	$ 361	(361)	0	0	0	0
Stock option expense	0	232,883	0	0	0	232,883
Dividends paid to stockholders	0	0	(645,511)	0	0	(645,511)
Dividend received by non-controlling interest	0	0	0	0	(102,729)	(102,729)
Net income	0	0	182,847	0	113,138	295,985
Other comprehensive income	$ 0	0	0	3,396	22,899	26,295
BALANCE (in shares) at Feb. 28, 2022	9,221,517
BALANCE at Feb. 28, 2022	$ 184,430	$ 19,379,032	$ 50,361,066	$ (3,858,689)	$ 3,371,928	$ 69,437,767

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Feb. 28, 2022	Feb. 28, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 5,017,818	$ 2,908,623
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation	465,766	342,504
Depreciation expense	430,991	451,498
Amortization expense	315,631	100,821
Change in allowance for doubtful accounts	0	10,000
Remeasurement gain on acquisition of equity method investee	(3,951,550)	0
Equity in income from joint ventures	(2,297,581)	(3,745,724)
Dividends received from joint ventures	5,362,636	3,323,503
Deferred income taxes	139,338	(3,182)
Changes in current assets and liabilities:
Trade, excluding joint ventures	321,322	(2,004,152)
Trade, joint ventures	(281,153)	27,879
Fees for services provided to joint ventures	426,425	(388,590)
Income taxes	(286,458)	(270,867)
Inventories	(990,628)	(83,028)
Prepaid expenses and other	(1,136,130)	(450,263)
Accounts payable	674,147	1,036,818
Income tax payable	(376,544)	290,252
Accrued liabilities	(1,715,302)	413,157
Net cash provided by operating activities	2,118,728	1,959,249
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of Zerust India business, net of cash acquired (see Note 3)	(5,062,003)	0
Purchase of available for sale securities	0	(868,758)
Proceeds from the sale of available for sale securities	0	500,000
Purchases of property and equipment	(618,533)	(466,572)
Investments in patents	(112,297)	(75,220)
Net cash used in investing activities	(5,792,833)	(910,550)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from line of credit	4,200,000	0
Dividends paid on NTIC common stock	(1,288,632)	(591,802)
Proceeds from the exercise of stock options	139,200	0
Dividends received by non-controlling interest	(302,729)	(200,000)
Proceeds from employee stock purchase plan	38,532	36,192
Net cash provided by (used in) financing activities	2,786,371	(755,610)
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	694,904	92,414
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(192,830)	385,503
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	7,680,641	6,403,032
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$ 7,487,811	$ 6,788,535

Note 1 - Interim Financial Info

Note 1 - Interim Financial Information	6 Months Ended
	Feb. 28, 2022
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	1. INTERIM FINANCIAL INFORMATION In the opinion of management, the accompanying unaudited consolidated financial statements contain all necessary adjustments, which are of a normal recurring nature, and present fairly the consolidated financial position of Northern Technologies International Corporation and its subsidiaries (the Company) as of February 28, 2022 August 31, 2021, three six February 28, 2022 2021, three six February 28, 2022 2021, six February 28, 2022 2021, These consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes contained in the Company’s annual report on Form 10 August 31, 2021. Management s Discussion and Analysis of Financial Condition and Results of Operations Operating results for the three six February 28, 2022 not may August 31, 2022. The Company evaluates events occurring after the date of the consolidated financial statements requiring recording or disclosure in the consolidated financial statements. Impact of COVID- 19 In March 2020, 19 19 first six 2022 2022. first six 2022,

Note 2 - Accounting Pronounceme

Note 2 - Accounting Pronouncements	6 Months Ended
	Feb. 28, 2022
Notes to Financial Statements
Accounting Standards Update and Change in Accounting Principle [Text Block]	2. ACCOUNTING PRONOUNCEMENTS Recently Issued Accounting Pronouncements In June 2016, No. 2016 13, November 2018, No. 2018 19 April 2019, No. 2019 04 May 2019, No. 2019 05, November 2019, No. 2019 11, December 15, 2022, first Although there are several other new accounting pronouncements issued or proposed by the FASB, which the Company has adopted or will adopt, as applicable, the Company does not

Note 3 - Business Combination

Note 3 - Business Combination	6 Months Ended
	Feb. 28, 2022
Notes to Financial Statements
Business Combination Disclosure [Text Block]	3. BUSINESS COMBINATION On September 21, 2021, September 1, 2021, September 1, 2021, The purchase price of $6,250,000 was funded with cash on hand and borrowings under the Company’s revolving line of credit, which was increased in connection with the transaction to $5,000,000. Because the Company increased its ownership interest in Zerust India to 100%, the acquisition of Zerust India has been accounted for in accordance with Accounting Standards Codification (ASC) 805, September 1, 2021, The following table summarizes the purchase price allocation that includes the fair values of the separately identifiable assets acquired and liabilities assumed as of September 1, 2021: Cash and cash equivalents $ 1,187,997 Trade account receivable 1,954,769 Inventories 886,650 Prepaid expenses and other 396,545 Property, plant and equipment 219,077 Operating lease, right of use asset 355,000 Customer relationships 6,347,000 Goodwill 4,782,376 Current liabilities (1,370,314 ) Deferred tax liability (1,904,100 ) Operating lease liability (355,000 ) Net assets acquired $ 12,500,000 Less: Fair value of previously held equity method investment (1,637,362 ) Cumulative foreign currency translation (661,088 ) Gain recognized on acquisition (3,951,550 ) (6,250,000 ) Cash paid for acquisition $ 6,250,000 The excess of the fair value of purchase consideration over the fair value of net tangible and identifiable intangible assets acquired was recorded as goodwill. The fair values assigned to tangible and identifiable intangible assets acquired and liabilities assumed are based on management’s estimates and assumptions. The fair values of assets acquired and liabilities assumed may The fair value of the intangible asset associated with customer relationships was estimated using a discounted cash flow method with the application of the multi-period excess earnings method. Under this method, an intangible asset’s fair value is equal to the present value of the incremental after-tax cash flows attributable to only the subject intangible asset after deducting contributory asset charges. The rate used to discount the estimated future net cash flows to their present values for the intangible assets was based upon a weighted average cost of capital calculation. The discount rate was determined after consideration of market rates of return on debt and equity capital, the weighted average return on invested capital and the risk associated with achieving forecasted sales related to the assets acquired from Zerust India. The weighted average discount rate used to determine the fair value of the customer relationships was 15.3%. The amortization period for the intangible assets is 15 Authoritative guidance on accounting for business combinations requires that an acquirer re-measure its previously held equity interest in the acquisition at its acquisition date fair value and recognize the resulting gain or loss in earnings. As such, since the Company acquired the remaining 50% September 1, 2021, six February 28, 2022. three six February 28, 2022. The Company has included the financial results of Zerust India in the consolidated financial statements from September 1, 2021. three six February 28, 2022. Unaudited consolidated pro forma information assuming the acquisition had occurred on September 1, 2020 three six February 28, 2022 September 1, 2020, three six February 28, 2022 not not may not may may

Note 4 - Inventories

Note 4 - Inventories	6 Months Ended
	Feb. 28, 2022
Notes to Financial Statements
Inventory Disclosure [Text Block]	4. INVENTORIES Inventories consisted of the following: February 28, 2022 August 31, 2021 Production materials $ 5,016,068 $ 4,453,688 Finished goods 7,962,149 6,660,519 $ 12,978,217 $ 11,114,207

Note 5 - Property and Equipment

Note 5 - Property and Equipment, Net	6 Months Ended
	Feb. 28, 2022
Notes to Financial Statements
Property, Plant and Equipment Disclosure [Text Block]	5. PROPERTY AND EQUIPMENT, NET Property and equipment, net consisted of the following: February 28, 2022 August 31, 2021 Land $ 310,365 $ 310,365 Buildings and improvements 14,084,196 13,149,258 Machinery and equipment 5,540,345 5,453,679 19,934,906 18,913,302 Less accumulated depreciation (7,598,207 ) (7,091,844 ) $ 12,336,699 $ 11,821,458

Note 6 - Patents and Trademarks

Note 6 - Patents and Trademarks, Net	6 Months Ended
	Feb. 28, 2022
Patents and Trademarks [Member]
Notes to Financial Statements
Intangible Assets Disclosure [Text Block]	6. PATENTS AND TRADEMARKS, NET Patents and trademarks, net consisted of the following: February 28, 2022 August 31, 2021 Patents and trademarks $ 3,130,803 $ 3,018,507 Less accumulated amortization (2,412,998 ) (2,308,935 ) $ 717,805 $ 709,572

Note 7 - Investments in Joint V

Note 7 - Investments in Joint Ventures	6 Months Ended
	Feb. 28, 2022
Notes to Financial Statements
Equity Method Investments and Joint Ventures Disclosure [Text Block]	7. INVESTMENTS IN JOINT VENTURES The consolidated financial statements of the Company’s foreign joint ventures are initially prepared using the accounting principles accepted in the respective joint ventures’ countries of domicile. Amounts related to foreign joint ventures reported in the below tables and the accompanying consolidated financial statements have subsequently been adjusted to conform with U.S. GAAP in all material respects. All material profits on sales recorded that remain on the consolidated balance sheet from the Company to its joint ventures and from joint ventures to other joint ventures have been eliminated for financial reporting purposes. Financial information from the audited and unaudited financial statements of the Company’s joint venture in Germany, Excor Korrosionsschutz – Technologien und Produkte GmbH (EXCOR), and all the Company’s other joint ventures are summarized as follows: As of February 28, 2022 Total EXCOR All Other Current assets $ 55,032,109 $ 25,447,104 $ 29,585,005 Total assets 58,525,731 27,186,903 31,338,828 Current liabilities 12,803,351 3,004,495 9,798,856 Noncurrent liabilities 1,268,334 - 1,268,334 Joint ventures’ equity 44,454,046 24,182,408 20,271,638 Northern Technologies International Corporation’s share of joint ventures’ equity 21,852,070 12,091,206 9,760,864 Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings 20,501,921 12,060,301 8,441,621 Three Months Ended February 28, 2022 Total EXCOR All Other Net sales $ 24,601,767 $ 9,312,434 $ 15,289,334 Gross profit 9,845,002 4,658,450 5,186,553 Net income 1,851,591 1,170,187 681,404 Northern Technologies International Corporation’s share of equity in income from joint ventures 922,832 589,048 333,784 Northern Technologies International Corporation's dividends received from joint ventures 320,365 — 320,365 Six Months Ended February 28, 2022 Total EXCOR All Other Net sales $ 51,624,762 $ 20,612,662 $ 31,012,100 Gross profit 20,877,961 10,127,436 10,750,525 Net income 4,629,196 2,991,734 1,637,462 Northern Technologies International Corporation’s share of equity in income from joint ventures 2,297,581 1,499,821 797,760 Northern Technologies International Corporation's dividends received from joint ventures 5,362,636 4,255,200 1,107,436 As of August 31, 2021 Total EXCOR All Other (1) Current assets $ 69,394,796 $ 33,886,655 $ 35,508,141 Total assets 73,814,402 36,211,520 37,602,882 Current liabilities 16,366,398 5,386,377 10,980,021 Noncurrent liabilities 1,455,524 — 1,455,524 Joint ventures’ equity 55,992,480 30,825,144 25,167,336 Northern Technologies International Corporation’s share of joint ventures’ equity 27,623,768 15,412,574 12,211,194 Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings 24,702,778 14,697,490 10,005,288 Three Months Ended February 28, 2021 Total EXCOR All Other (1) Net sales $ 29,058,402 $ 10,542,097 $ 18,516,306 Gross profit 13,079,478 6,099,187 6,980,291 Net income 3,838,007 2,262,321 1,575,686 Northern Technologies International Corporation’s share of equity in income from joint ventures 1,920,012 1,132,578 787,434 Northern Technologies International Corporation's dividends received from joint ventures 2,198,142 1,809,900 388,242 Six Months Ended February 28, 2021 Total EXCOR All Other (1) Net sales $ 55,835,745 $ 20,093,580 $ 35,742,165 Gross profit 25,521,239 11,798,194 13,723,045 Net income 7,489,431 4,283,395 3,206,036 Northern Technologies International Corporation’s share of equity in income from joint ventures 3,745,724 2,143,115 1,602,609 Northern Technologies International Corporation's dividends received from joint ventures 3,323,503 1,809,900 1,513,603 ( 1 not August 31, 2021 February 28, 2021. 3

Note 8 - Intangible Assets, Net

Note 8 - Intangible Assets, Net	6 Months Ended
	Feb. 28, 2022
Customer Relationships and Assembled Workforce [Member]
Notes to Financial Statements
Intangible Assets Disclosure [Text Block]	8. INTANGIBLE ASSET, NET Intangible asset, net consisted of the following as of February 28, 2022: Gross Carrying Amount Accumulated Amortization Net Carrying Amount Customer relationships $ 6,347,000 $ (211,567 ) $ 6,135,433 The customer relationships was established as a part of purchase accounting related to our Zerust India acquisition. See Note 3 three six February 28, 2022, five

Note 9 - Corporate Debt

Note 9 - Corporate Debt	6 Months Ended
	Feb. 28, 2022
Notes to Financial Statements
Debt Disclosure [Text Block]	9. CORPORATE DEBT The Company has a revolving line of credit with PNC Bank, National Association (PNC Bank) of $5,000,000 as of February 28, 2022. August 31, 2021, February 22, 2022. January 4, 2022, January 7, 2023 January 4, 2022 February 22, 2022 $3,000,000 30 February 23, 2022 February 23, 2022 March 1, 2022. March 1, 2022, February 23, 2022 April 23, 2022 not Borrowings of $4,200,000 were outstanding under the line of credit as of February 28, 2022 August 31, 2021. three six February 28, 2022 The line of credit is governed under an Amended and Restated Loan Agreement dated August 31, 2021. 1.10:1.00, February 28, 2022, As of February 28, 2022 August 31, 2021, not February 28, 2022 August 31, 2021, 2021 2022.

Note 10 - Stockholders' Equity

Note 10 - Stockholders' Equity	6 Months Ended
	Feb. 28, 2022
Notes to Financial Statements
Stockholders' Equity Note Disclosure [Text Block]	10. STOCKHOLDERS EQUITY During the six February 28, 2022, Declaration Date Amount Record Date Payable Date October 20, 2021 $ 0.07 November 3, 2021 November 17, 2021 January 21, 2022 $ 0.07 February 2, 2022 February 16, 2022 During the six February 28, 2022 2021, no During the six February 28, 2022, 2019 2019 six February 28, 2022, During the six February 28, 2021, February 17, 2021 February 3, 2021. April 23, 2020 19 During the six February 28, 2021, 2019 six February 28, 2021, no The Company issued 2,636 and 4,646 shares of common stock on September 1, 2021 2020, February 28, 2022,

Note 11 - Net Income Per Common

Note 11 - Net Income Per Common Share	6 Months Ended
	Feb. 28, 2022
Notes to Financial Statements
Earnings Per Share [Text Block]	11. NET INCOME PER COMMON SHARE Basic net income per common share is computed by dividing net income by the weighted average number of common shares outstanding. Diluted net income per share assumes the exercise of stock options using the treasury stock method, if dilutive. The following is a reconciliation of the net income per share computation for the three six February 28, 2022 2021: Three Months Ended February 28, Six Months Ended February 28, Numerator: 2022 2021 2022 2021 Net income attributable to NTIC $ 182,847 $ 1,312,575 $ 4,676,606 $ 2,574,974 Denominator: Basic – weighted shares outstanding 9,214,817 9,104,636 9,211,858 9,104,623 Weighted shares assumed upon exercise of stock options 468,609 763,282 524,202 651,645 Diluted – weighted shares outstanding 9,683,426 9,867,918 9,736,060 9,756,268 Basic net income per share: $ 0.02 $ 0.14 $ 0.51 $ 0.28 Diluted net income per share: $ 0.02 $ 0.13 $ 0.48 $ 0.26 The dilutive impact summarized above relates to the periods when the average market price of the Company’s common stock exceeded the exercise price of the potentially dilutive option securities granted. Net income per common share was based on the weighted average number of common shares outstanding during the periods when computing basic net income per share. When dilutive, stock options are included as equivalents using the treasury stock market method when computing the diluted net income per share. Excluded from the computation of diluted net income per share for the three six February 28, 2022 three six February 28, 2021,

Note 12 - Stock-based Compensat

Note 12 - Stock-based Compensation	6 Months Ended
	Feb. 28, 2022
Notes to Financial Statements
Share-based Payment Arrangement [Text Block]	12. STOCK-BASED COMPENSATION The Company has three 2019 2007 2007 2019 2007 no may 2007 The 2019 January 15, 2021, 2019 2019 2019 ten one three one February 28, 2022, 2019 2019 February 28, 2022, 2007 The Company granted options to purchase an aggregate of 174,840 and 419,874 shares of its common stock during the six February 28, 2022 2021, three six February 28, 2022, three six February 28, 2021, February 28, 2022, not 2022 2023 2024, February 28, 2022. The fair value of each option grant is estimated on the grant date using the Black-Scholes option pricing model with the following assumptions and results for the grants: Three and Six Months Ended February 28, 2022 2021 Dividend yield 1.65 % 2.37 % Expected volatility 45.4 % 45.6 % Expected life of option (in years) 10 10 Average risk-free interest rate 0.77 % 0.28 % The weighted average per share fair value of options granted during the six February 28, 2022 2021 February 28, 2022 2021

Note 13 - Segment and Geographi

Note 13 - Segment and Geographic Information	6 Months Ended
	Feb. 28, 2022
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	13. SEGMENT AND GEOGRAPHIC INFORMATION Segment Information The Company’s chief operating decision maker is its Chief Executive Officer. The Company’s business is organized into two reportable segments: ZERUST® and Natur-Tec®. The Company 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 over 45 The following table sets forth the Company’s net sales for the three six February 28, 2022 2021 Three Months Ended February 28, Six Months Ended February 28, 2022 2021 2022 2021 ZERUST® net sales $ 13,117,777 $ 10,284,116 $ 27,541,562 $ 20,504,667 Natur-Tec® net sales 3,630,862 2,498,766 7,400,490 5,057,327 Total net sales $ 16,748,639 $ 12,782,882 $ 34,942,052 $ 25,561,994 The following table sets forth the Company’s cost of goods sold for the three six February 28, 2022 2021 Three Months Ended February 28, Six Months Ended February 28, 2022 % of Product Sales* 2021 % of Product Sales* 2022 % of Product Sales* 2021 % of Product Sales* Direct cost of goods sold ZERUST® $ 8,151,274 62.1 % $ 6,065,963 59.0 % $ 16,857,941 61.2 % $ 11,837,052 57.7 % Natur-Tec® 2,775,436 76.4 % 1,684,180 67.4 % 5,697,533 77.0 % 3,451,810 68.3 % Indirect cost of goods sold 837,594 — 781,536 — 1,699,313 — 1,556,138 — Total net cost of goods sold $ 11,764,304 $ 8,531,679 $ 24,254,787 $ 16,845,000 * The percent of segment sales is calculated by dividing the direct cost of goods sold for each individual segment category by the net sales for each segment category. The Company utilizes product net sales and direct and indirect cost of goods sold for each product in reviewing the financial performance of a product type. Further allocation of Company expenses or assets, aside from amounts presented in the tables above, is not Geographic Information Net sales by geographic location for the three six February 28, 2022 2021 Three Months Ended February 28, Six Months Ended February 28, 2022 2021 2022 2021 Inside the U.S.A. to unaffiliated customers $ 5,115,963 $ 4,619,130 $ 11,272,285 $ 9,480,485 Outside the U.S.A. to: Joint ventures in which the Company is a shareholder directly and indirectly 883,513 526,942 1,723,952 1,107,246 Unaffiliated customers 10,749,163 7,636,810 21,945,815 14,974,262 $ 16,748,639 $ 12,782,882 $ 34,942,052 $ 25,561,994 Net sales by geographic location are based on the location of the customer. Fees for services provided to joint ventures by geographic location as a percentage of total fees for services provided to joint ventures during the three six February 28, 2022 2021 Three Months Ended February 28, 2022 % of Total Fees for Services Provided to Joint Ventures 2021 % of Total Fees for Services Provided to Joint Ventures Germany $ 216,992 17.4 % $ 231,917 15.9 % Poland 172,700 13.9 % 210,943 14.4 % Japan 151,933 12.2 % 181,493 12.4 % France 115,663 9.3 % 97,638 6.7 % Sweden 99,178 8.0 % 146,896 10.0 % United Kingdom 86,736 7.0 % 71,759 4.9 % Thailand 87,918 7.1 % 107,377 7.3 % Finland 85,426 6.9 % 71,496 4.9 % Czech Republic 69,386 5.6 % 89,538 6.1 % South Korea 64,173 5.1 % 78,220 5.3 % Other 96,804 7.5 % 175,407 12.0 % $ 1,246,909 100.0 % $ 1,462,684 100.0 % Six Months Ended February 28, 2022 % of Total Fees for Services Provided to Joint Ventures 2021 % of Total Fees for Services Provided to Joint Ventures Germany $ 435,422 17.4 % $ 460,744 16.5 % Poland 349,626 14.0 % 400,353 14.3 % Japan 318,740 12.7 % 361,455 12.9 % France 231,958 9.3 % 203,545 7.3 % Sweden 207,248 8.3 % 237,385 8.5 % Thailand 181,663 7.2 % 133,674 4.8 % South Korea 175,472 7.0 % 197,309 7.0 % Finland 165,599 6.6 % 147,779 5.3 % Czech Republic 139,483 5.6 % 158,891 5.7 % United Kingdom 126,800 5.1 % 163,298 5.8 % Other 173,756 6.8 % 334,811 12.0 % $ 2,505,767 100.0 % $ 2,799,245 100.0 % The geographical distribution of total property and equipment and net sales is as follows: As of February 28, 2022 As of August 31, 2021 China $ 5,615,383 $ 5,110,071 Other 655,837 453,199 United States 6,783,284 6,967,761 Total property and equipment and intangible assets, net $ 13,054,504 $ 12,531,031 Three Months Ended February 28, 2022 2021 China $ 4,163,741 $ 4,443,656 Brazil 936,089 804,569 India 4,068,781 1,295,006 Other 2,464,066 1,620,521 United States 5,115,962 4,619,130 Total net sales $ 16,748,639 $ 12,782,882 Six Months Ended February 28, 2022 2021 China $ 8,221,593 $ 8,987,634 Brazil 2,232,306 1,518,422 India 8,545,765 2,495,474 Other 4,670,103 3,079,978 United States 11,272,285 9,480,486 Total net sales $ 34,942,052 $ 25,561,994 Long-lived assets consist of property and equipment and intangible assets. These assets are periodically reviewed to assure the net realizable value from the estimated future production based on forecasted sales exceeds the carrying value of the assets. Sales to the Company’s joint ventures are included in the foregoing segment and geographic information; however, sales by the Company’s joint ventures to other parties are not All joint venture operations, including equity in income, fees for services and related dividends, are primarily related to ZERUST® products and services.

Note 14 - Commitments and Conti

Note 14 - Commitments and Contingencies	6 Months Ended
	Feb. 28, 2022
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	14. COMMITMENTS AND CONTINGENCIES Annual Bonus Plan On August 26, 2021, August 31, 2022. 2022, 2022 2022, may 2022. six February 28, 2022, six February 28, 2021. Concentrations One joint venture (the Company’s joint venture in South Korea) accounted for 33.8% of the Company’s trade joint venture receivables as of February 28, 2022, three February 28, 2021. Legal Matters From time to time, the Company is subject to various other claims and legal actions in the ordinary course of its business. The Company records a liability in its consolidated financial statements for costs related to claims, including future legal costs, settlements and judgments, where the Company has assessed that a loss is probable, and an amount could be reasonably estimated. If the reasonable estimate of a probable loss is a range, the Company records the most probable estimate of the loss or the minimum amount when no not not may February 28, 2022, not

Note 15 - Fair Value Measuremen

Note 15 - Fair Value Measurements	6 Months Ended
	Feb. 28, 2022
Notes to Financial Statements
Fair Value Measurement and Measurement Inputs, Recurring and Nonrecurring [Text Block]	15. FAIR VALUE MEASUREMENTS Assets and liabilities that are measured at fair value on a recurring basis primarily relate to marketable equity securities. These items are marked-to-market at each reporting period, and the Company estimates that market value approximates costs. The following tables provide information by level for assets and liabilities that are measured at fair value on a recurring basis: Fair Value Measurements Using Inputs Considered as Fair value as of February 28, 2022 Level 1 Level 2 Level 3 Available for sale securities $ 4,634 $ 4,634 $ — $ — Fair Value Measurements Using Inputs Considered as Fair value as of August 31, 2021 Level 1 Level 2 Level 3 Available for sale securities $ 4,634 $ 4,634 $ — $ — There were no 1, 2, 3 three six February 28, 2022 2021.

Note 16 - Supplemental Cash Flo

Note 16 - Supplemental Cash Flow Information	6 Months Ended
	Feb. 28, 2022
Notes to Financial Statements
Cash Flow, Supplemental Disclosures [Text Block]	16. SUPPLEMENTAL CASH FLOW INFORMATION Supplemental disclosures of cash flow information consisted of: Three Months Ended February 28, Six Months Ended February 28, 2022 2021 2022 2021 Cash paid for interest $ 7,404 $ 5,249 $ 10,295 $ 7,617

Note 17 - Income Taxes

Note 17 - Income Taxes	6 Months Ended
	Feb. 28, 2022
Notes to Financial Statements
Income Tax Disclosure [Text Block]	17. INCOME TAXES Income tax expense for the three six February 28, 2022 three six February 28, 2021. February 28, 2022 August 31, 2021.

Note 3 - Business Combination (

Note 3 - Business Combination (Tables)	6 Months Ended
	Feb. 28, 2022
Notes Tables
Schedule of Business Acquisitions, by Acquisition [Table Text Block]	Cash and cash equivalents $ 1,187,997 Trade account receivable 1,954,769 Inventories 886,650 Prepaid expenses and other 396,545 Property, plant and equipment 219,077 Operating lease, right of use asset 355,000 Customer relationships 6,347,000 Goodwill 4,782,376 Current liabilities (1,370,314 ) Deferred tax liability (1,904,100 ) Operating lease liability (355,000 ) Net assets acquired $ 12,500,000 Less: Fair value of previously held equity method investment (1,637,362 ) Cumulative foreign currency translation (661,088 ) Gain recognized on acquisition (3,951,550 ) (6,250,000 ) Cash paid for acquisition $ 6,250,000

Note 4 - Inventories (Tables)

Note 4 - Inventories (Tables)	6 Months Ended
	Feb. 28, 2022
Notes Tables
Schedule of Inventory, Current [Table Text Block]	February 28, 2022 August 31, 2021 Production materials $ 5,016,068 $ 4,453,688 Finished goods 7,962,149 6,660,519 $ 12,978,217 $ 11,114,207

Note 5 - Property and Equipme_2

Note 5 - Property and Equipment, Net (Tables)	6 Months Ended
	Feb. 28, 2022
Notes Tables
Property, Plant and Equipment [Table Text Block]	February 28, 2022 August 31, 2021 Land $ 310,365 $ 310,365 Buildings and improvements 14,084,196 13,149,258 Machinery and equipment 5,540,345 5,453,679 19,934,906 18,913,302 Less accumulated depreciation (7,598,207 ) (7,091,844 ) $ 12,336,699 $ 11,821,458

Note 6 - Patents and Trademar_2

Note 6 - Patents and Trademarks, Net (Tables)	6 Months Ended
	Feb. 28, 2022
Patents and Trademarks [Member]
Notes Tables
Schedule of Finite-Lived Intangible Assets [Table Text Block]	February 28, 2022 August 31, 2021 Patents and trademarks $ 3,130,803 $ 3,018,507 Less accumulated amortization (2,412,998 ) (2,308,935 ) $ 717,805 $ 709,572

Note 7 - Investments in Joint_2

Note 7 - Investments in Joint Ventures (Tables)	6 Months Ended
	Feb. 28, 2022
Notes Tables
Condensed Balance Sheet [Table Text Block]	As of February 28, 2022 Total EXCOR All Other Current assets $ 55,032,109 $ 25,447,104 $ 29,585,005 Total assets 58,525,731 27,186,903 31,338,828 Current liabilities 12,803,351 3,004,495 9,798,856 Noncurrent liabilities 1,268,334 - 1,268,334 Joint ventures’ equity 44,454,046 24,182,408 20,271,638 Northern Technologies International Corporation’s share of joint ventures’ equity 21,852,070 12,091,206 9,760,864 Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings 20,501,921 12,060,301 8,441,621 As of August 31, 2021 Total EXCOR All Other (1) Current assets $ 69,394,796 $ 33,886,655 $ 35,508,141 Total assets 73,814,402 36,211,520 37,602,882 Current liabilities 16,366,398 5,386,377 10,980,021 Noncurrent liabilities 1,455,524 — 1,455,524 Joint ventures’ equity 55,992,480 30,825,144 25,167,336 Northern Technologies International Corporation’s share of joint ventures’ equity 27,623,768 15,412,574 12,211,194 Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings 24,702,778 14,697,490 10,005,288
Condensed Income Statement [Table Text Block]	Three Months Ended February 28, 2022 Total EXCOR All Other Net sales $ 24,601,767 $ 9,312,434 $ 15,289,334 Gross profit 9,845,002 4,658,450 5,186,553 Net income 1,851,591 1,170,187 681,404 Northern Technologies International Corporation’s share of equity in income from joint ventures 922,832 589,048 333,784 Northern Technologies International Corporation's dividends received from joint ventures 320,365 — 320,365 Six Months Ended February 28, 2022 Total EXCOR All Other Net sales $ 51,624,762 $ 20,612,662 $ 31,012,100 Gross profit 20,877,961 10,127,436 10,750,525 Net income 4,629,196 2,991,734 1,637,462 Northern Technologies International Corporation’s share of equity in income from joint ventures 2,297,581 1,499,821 797,760 Northern Technologies International Corporation's dividends received from joint ventures 5,362,636 4,255,200 1,107,436 Three Months Ended February 28, 2021 Total EXCOR All Other (1) Net sales $ 29,058,402 $ 10,542,097 $ 18,516,306 Gross profit 13,079,478 6,099,187 6,980,291 Net income 3,838,007 2,262,321 1,575,686 Northern Technologies International Corporation’s share of equity in income from joint ventures 1,920,012 1,132,578 787,434 Northern Technologies International Corporation's dividends received from joint ventures 2,198,142 1,809,900 388,242 Six Months Ended February 28, 2021 Total EXCOR All Other (1) Net sales $ 55,835,745 $ 20,093,580 $ 35,742,165 Gross profit 25,521,239 11,798,194 13,723,045 Net income 7,489,431 4,283,395 3,206,036 Northern Technologies International Corporation’s share of equity in income from joint ventures 3,745,724 2,143,115 1,602,609 Northern Technologies International Corporation's dividends received from joint ventures 3,323,503 1,809,900 1,513,603

Note 8 - Intangible Assets, N_2

Note 8 - Intangible Assets, Net (Tables)	6 Months Ended
	Feb. 28, 2022
Customer Relationships and Assembled Workforce [Member]
Notes Tables
Schedule of Finite-Lived Intangible Assets [Table Text Block]	Gross Carrying Amount Accumulated Amortization Net Carrying Amount Customer relationships $ 6,347,000 $ (211,567 ) $ 6,135,433

Note 10 - Stockholders' Equity

Note 10 - Stockholders' Equity (Tables)	6 Months Ended
	Feb. 28, 2022
Notes Tables
Dividends Declared [Table Text Block]	Declaration Date Amount Record Date Payable Date October 20, 2021 $ 0.07 November 3, 2021 November 17, 2021 January 21, 2022 $ 0.07 February 2, 2022 February 16, 2022

Note 11 - Net Income Per Comm_2

Note 11 - Net Income Per Common Share (Tables)	6 Months Ended
	Feb. 28, 2022
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Three Months Ended February 28, Six Months Ended February 28, Numerator: 2022 2021 2022 2021 Net income attributable to NTIC $ 182,847 $ 1,312,575 $ 4,676,606 $ 2,574,974 Denominator: Basic – weighted shares outstanding 9,214,817 9,104,636 9,211,858 9,104,623 Weighted shares assumed upon exercise of stock options 468,609 763,282 524,202 651,645 Diluted – weighted shares outstanding 9,683,426 9,867,918 9,736,060 9,756,268 Basic net income per share: $ 0.02 $ 0.14 $ 0.51 $ 0.28 Diluted net income per share: $ 0.02 $ 0.13 $ 0.48 $ 0.26

Note 12 - Stock-based Compens_2

Note 12 - Stock-based Compensation (Tables)	6 Months Ended
	Feb. 28, 2022
Notes Tables
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	Three and Six Months Ended February 28, 2022 2021 Dividend yield 1.65 % 2.37 % Expected volatility 45.4 % 45.6 % Expected life of option (in years) 10 10 Average risk-free interest rate 0.77 % 0.28 %

Note 13 - Segment and Geograp_2

Note 13 - Segment and Geographic Information (Tables)	6 Months Ended
	Feb. 28, 2022
Notes Tables
Reconciliation of Revenue from Segments to Consolidated [Table Text Block]	Three Months Ended February 28, Six Months Ended February 28, 2022 2021 2022 2021 ZERUST® net sales $ 13,117,777 $ 10,284,116 $ 27,541,562 $ 20,504,667 Natur-Tec® net sales 3,630,862 2,498,766 7,400,490 5,057,327 Total net sales $ 16,748,639 $ 12,782,882 $ 34,942,052 $ 25,561,994
Reconciliation of Cost of Goods Sold from Segments to Consolidated [Table Text Block]	Three Months Ended February 28, Six Months Ended February 28, 2022 % of Product Sales* 2021 % of Product Sales* 2022 % of Product Sales* 2021 % of Product Sales* Direct cost of goods sold ZERUST® $ 8,151,274 62.1 % $ 6,065,963 59.0 % $ 16,857,941 61.2 % $ 11,837,052 57.7 % Natur-Tec® 2,775,436 76.4 % 1,684,180 67.4 % 5,697,533 77.0 % 3,451,810 68.3 % Indirect cost of goods sold 837,594 — 781,536 — 1,699,313 — 1,556,138 — Total net cost of goods sold $ 11,764,304 $ 8,531,679 $ 24,254,787 $ 16,845,000
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]	Three Months Ended February 28, Six Months Ended February 28, 2022 2021 2022 2021 Inside the U.S.A. to unaffiliated customers $ 5,115,963 $ 4,619,130 $ 11,272,285 $ 9,480,485 Outside the U.S.A. to: Joint ventures in which the Company is a shareholder directly and indirectly 883,513 526,942 1,723,952 1,107,246 Unaffiliated customers 10,749,163 7,636,810 21,945,815 14,974,262 $ 16,748,639 $ 12,782,882 $ 34,942,052 $ 25,561,994
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]	As of February 28, 2022 As of August 31, 2021 China $ 5,615,383 $ 5,110,071 Other 655,837 453,199 United States 6,783,284 6,967,761 Total property and equipment and intangible assets, net $ 13,054,504 $ 12,531,031
Revenue from External Customers by Geographic Areas [Table Text Block]	Three Months Ended February 28, 2022 2021 China $ 4,163,741 $ 4,443,656 Brazil 936,089 804,569 India 4,068,781 1,295,006 Other 2,464,066 1,620,521 United States 5,115,962 4,619,130 Total net sales $ 16,748,639 $ 12,782,882 Six Months Ended February 28, 2022 2021 China $ 8,221,593 $ 8,987,634 Brazil 2,232,306 1,518,422 India 8,545,765 2,495,474 Other 4,670,103 3,079,978 United States 11,272,285 9,480,486 Total net sales $ 34,942,052 $ 25,561,994
Fees for Services Provided to Joint Ventures [Member]
Notes Tables
Reconciliation of Revenue from Segments to Consolidated [Table Text Block]	Three Months Ended February 28, 2022 % of Total Fees for Services Provided to Joint Ventures 2021 % of Total Fees for Services Provided to Joint Ventures Germany $ 216,992 17.4 % $ 231,917 15.9 % Poland 172,700 13.9 % 210,943 14.4 % Japan 151,933 12.2 % 181,493 12.4 % France 115,663 9.3 % 97,638 6.7 % Sweden 99,178 8.0 % 146,896 10.0 % United Kingdom 86,736 7.0 % 71,759 4.9 % Thailand 87,918 7.1 % 107,377 7.3 % Finland 85,426 6.9 % 71,496 4.9 % Czech Republic 69,386 5.6 % 89,538 6.1 % South Korea 64,173 5.1 % 78,220 5.3 % Other 96,804 7.5 % 175,407 12.0 % $ 1,246,909 100.0 % $ 1,462,684 100.0 % Six Months Ended February 28, 2022 % of Total Fees for Services Provided to Joint Ventures 2021 % of Total Fees for Services Provided to Joint Ventures Germany $ 435,422 17.4 % $ 460,744 16.5 % Poland 349,626 14.0 % 400,353 14.3 % Japan 318,740 12.7 % 361,455 12.9 % France 231,958 9.3 % 203,545 7.3 % Sweden 207,248 8.3 % 237,385 8.5 % Thailand 181,663 7.2 % 133,674 4.8 % South Korea 175,472 7.0 % 197,309 7.0 % Finland 165,599 6.6 % 147,779 5.3 % Czech Republic 139,483 5.6 % 158,891 5.7 % United Kingdom 126,800 5.1 % 163,298 5.8 % Other 173,756 6.8 % 334,811 12.0 % $ 2,505,767 100.0 % $ 2,799,245 100.0 %

Note 15 - Fair Value Measurem_2

Note 15 - Fair Value Measurements (Tables)	6 Months Ended
	Feb. 28, 2022
Notes Tables
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]	Fair Value Measurements Using Inputs Considered as Fair value as of February 28, 2022 Level 1 Level 2 Level 3 Available for sale securities $ 4,634 $ 4,634 $ — $ — Fair Value Measurements Using Inputs Considered as Fair value as of August 31, 2021 Level 1 Level 2 Level 3 Available for sale securities $ 4,634 $ 4,634 $ — $ —

Note 16 - Supplemental Cash F_2

Note 16 - Supplemental Cash Flow Information (Tables)	6 Months Ended
	Feb. 28, 2022
Notes Tables
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]	Three Months Ended February 28, Six Months Ended February 28, 2022 2021 2022 2021 Cash paid for interest $ 7,404 $ 5,249 $ 10,295 $ 7,617

Note 3 - Business Combination_2

Note 3 - Business Combination (Details Textual) - USD ($)	Sep. 01, 2021	Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022	Feb. 28, 2021	Feb. 22, 2022	Aug. 31, 2021	Aug. 30, 2021
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain (Loss), Net, Total		$ 0	$ 0	$ 3,951,550	$ 0
Revolving Credit Facility [Member] | PNC Bank [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 5,000,000	5,000,000		5,000,000		$ 5,000,000	$ 5,000,000	$ 3,000,000
Harita-NTI Limited [Member]
Business Acquisition, Percentage of Voting Interests Acquired	50.00%
Business Combination, Consideration Transferred, Total	$ 6,250,000
Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage	50.00%
Business Combination, Step Acquisition, Equity Interest in Acquiree, including Subsequent Acquisition, Percentage, Total	100.00%
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain (Loss), Net, Total	$ 3,951,550			3,951,550
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual		4,680,103
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual				496,748
Business Combination, Acquisition Related Costs		65,000		115,000
Business Acquisition, Pro Forma Revenue		$ 2,257,542		$ 4,271,892
Harita-NTI Limited [Member] | Customer Relationships [Member]
Acquired Finite-lived Intangible Assets, Weighted Average Discount Rate	15.30%
Harita-NTI Limited [Member] | Customer Relationships and Assembled Workforce [Member]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (Year)	15 years

Note 3 - Business Combination -

Note 3 - Business Combination - Preliminary Purchase Price Allocation (Details) - USD ($)	Sep. 01, 2021	Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022	Feb. 28, 2021	Aug. 31, 2021
Goodwill		$ 4,782,376		$ 4,782,376		$ 0
Gain recognized on acquisition		$ 0	$ 0	(3,951,550)	$ 0
Harita-NTI Limited [Member]
Cash and cash equivalents	$ 1,187,997
Trade account receivable	1,954,769
Inventories	886,650
Prepaid expenses and other	396,545
Property, plant and equipment	219,077
Customer relationships	6,347,000
Goodwill	4,782,376
Current liabilities	(1,370,314)
Deferred tax liability	(1,904,100)
Operating lease liability	(355,000)
Net assets acquired	12,500,000
Fair value of previously held equity method investment	(1,637,362)
Cumulative foreign currency translation	(661,088)
Gain recognized on acquisition	(3,951,550)			$ (3,951,550)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest, Total	(6,250,000)
Cash paid for acquisition	6,250,000
Harita-NTI Limited [Member] | Customer Relationships [Member]
Operating lease, right of use asset	$ (355,000)

Note 4 - Inventories - Inventor

Note 4 - Inventories - Inventories (Details) - USD ($)	Feb. 28, 2022	Aug. 31, 2021
Production materials	$ 5,016,068	$ 4,453,688
Finished goods	7,962,149	6,660,519
Total inventory	$ 12,978,217	$ 11,114,207

Note 5 - Property and Equipme_3

Note 5 - Property and Equipment, Net - Components of Property and Equipment, Net (Details) - USD ($)	Feb. 28, 2022	Aug. 31, 2021
Land	$ 310,365	$ 310,365
Buildings and improvements	14,084,196	13,149,258
Machinery and equipment	5,540,345	5,453,679
Gross	19,934,906	18,913,302
Less accumulated depreciation	(7,598,207)	(7,091,844)
Net	$ 12,336,699	$ 11,821,458

Note 6 - Patents and Trademar_3

Note 6 - Patents and Trademarks, Net - Patents and Trademarks, Net (Details) - Patents and Trademarks [Member] - USD ($)	Feb. 28, 2022	Aug. 31, 2021
Patents and trademarks	$ 3,130,803	$ 3,018,507
Less accumulated amortization	(2,412,998)	(2,308,935)
Patents and trademarkes, net	$ 717,805	$ 709,572

Note 7 - Investments in Joint_3

Note 7 - Investments in Joint Ventures - Condensed Balance Sheet of EXCOR and All Other Joint Ventures (Details) - USD ($)		Feb. 28, 2022	Aug. 31, 2021
Current assets		$ 38,597,623	$ 33,747,089
Total assets		84,950,651	74,370,879
Current liabilities		13,271,186	8,516,196
Noncurrent liabilities		2,241,698	104,102
Joint ventures’ equity		66,065,839	62,368,026
Investments in joint ventures		21,852,070	27,623,768
Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member]
Current assets		55,032,109	69,394,796
Total assets		58,525,731	73,814,402
Current liabilities		12,803,351	16,366,398
Noncurrent liabilities		1,268,334	1,455,524
Joint ventures’ equity		44,454,046	55,992,480
Investments in joint ventures		21,852,070	27,623,768
Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings		20,501,921	24,702,778
EXCOR [Member]
Current assets		25,447,104	33,886,655
Total assets		27,186,903	36,211,520
Current liabilities		3,004,495	5,386,377
Noncurrent liabilities		0	0
Joint ventures’ equity		24,182,408	30,825,144
Investments in joint ventures		12,091,206	15,412,574
Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings		12,060,301	14,697,490
All Other [Member]
Current assets		29,585,005
Total assets		31,338,828
Current liabilities		9,798,856
Noncurrent liabilities		1,268,334
Joint ventures’ equity		20,271,638
Investments in joint ventures		9,760,864
Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings		$ 8,441,621
Joint Ventures in France [Member]
Current assets	[1]		35,508,141
Total assets	[1]		37,602,882
Current liabilities	[1]		10,980,021
Noncurrent liabilities	[1]		1,455,524
Joint ventures’ equity	[1]		25,167,336
Investments in joint ventures	[1]		12,211,194
Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings	[1]		$ 10,005,288
[1]	Includes Harita-NTI since Harita-NTI was not a consolidated subsidiary of the Company as of Augut 31, 2021 or November 30, 2020. See Note 3.

Note 7 - Investments in Joint_4

Note 7 - Investments in Joint Ventures - Condensed Income Statement of EXCOR and All Other Joint Ventures (Details) - USD ($)		3 Months Ended		6 Months Ended
		Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022	Feb. 28, 2021
Net sales		$ 16,748,639	$ 12,782,882	$ 34,942,052	$ 25,561,994
Gross profit		4,984,335	4,251,203	10,687,265	8,716,994
Net income		182,847	1,312,575	4,676,606	2,574,974
Northern Technologies International Corporation’s share of equity in income from joint ventures		922,832	1,920,012	2,297,581	3,745,724
Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member]
Net sales		24,601,767	29,058,402	51,624,762	55,835,745
Gross profit		9,845,002	13,079,478	20,877,961	25,521,239
Net income		1,851,591	3,838,007	4,629,196	7,489,431
Northern Technologies International Corporation’s share of equity in income from joint ventures		922,832	1,920,012	2,297,581	3,745,724
Northern Technologies International Corporation's dividends received from joint ventures		320,365	2,198,142	5,362,636	3,323,503
EXCOR [Member]
Net sales		9,312,434	10,542,097	20,612,662	20,093,580
Gross profit		4,658,450	6,099,187	10,127,436	11,798,194
Net income		1,170,187	2,262,321	2,991,734	4,283,395
Northern Technologies International Corporation’s share of equity in income from joint ventures		589,048	1,132,578	1,499,821	2,143,115
Northern Technologies International Corporation's dividends received from joint ventures		0	1,809,900	4,255,200	1,809,900
All Other [Member]
Net sales		15,289,334
Gross profit		5,186,553
Net income		681,404
Northern Technologies International Corporation’s share of equity in income from joint ventures		333,784
Northern Technologies International Corporation's dividends received from joint ventures		$ 320,365
Joint Ventures in France [Member]
Net sales	[1]		18,516,306	31,012,100	35,742,165
Gross profit	[1]		6,980,291	10,750,525	13,723,045
Net income	[1]		1,575,686	1,637,462	3,206,036
Northern Technologies International Corporation’s share of equity in income from joint ventures	[1]		787,434	797,760	1,602,609
Northern Technologies International Corporation's dividends received from joint ventures	[1]		$ 388,242	$ 1,107,436	$ 1,513,603
[1]	Includes Harita-NTI since Harita-NTI was not a consolidated subsidiary of the Company as of Augut 31, 2021 or November 30, 2020. See Note 3.

Note 8 - Intangible Assets, N_3

Note 8 - Intangible Assets, Net (Details Textual) - Customer Relationships and Assembled Workforce [Member]	3 Months Ended	6 Months Ended
	Feb. 28, 2022USD ($)	Feb. 28, 2022USD ($)
Finite-Lived Intangible Asset, Useful Life (Year)	15 years
Amortization of Intangible Assets, Total	$ 143,567	$ 211,567
Finite-Lived Intangible Asset, Expected Amortization, Year One	423,000	423,000
Finite-Lived Intangible Asset, Expected Amortization, Year Two	423,000	423,000
Finite-Lived Intangible Asset, Expected Amortization, Year Three	423,000	423,000
Finite-Lived Intangible Asset, Expected Amortization, Year Four	423,000	423,000
Finite-Lived Intangible Asset, Expected Amortization, Year Five	$ 423,000	$ 423,000

Note 8 - Intangible Assets, N_4

Note 8 - Intangible Assets, Net (Details) - Customer Relationships [Member]	Feb. 28, 2022USD ($)
Patents and trademarks	$ 6,347,000
Less accumulated amortization	(211,567)
Customer relationships	$ 6,135,433

Note 9 - Corporate Debt (Detail

Note 9 - Corporate Debt (Details Textual)	6 Months Ended
	Feb. 28, 2022USD ($)	Apr. 24, 2022USD ($)	Apr. 23, 2022USD ($)	Feb. 22, 2022USD ($)	Sep. 01, 2021USD ($)	Aug. 31, 2021USD ($)	Aug. 30, 2021USD ($)
PNC Bank [Member] | Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 5,000,000			$ 5,000,000	$ 5,000,000	$ 5,000,000	$ 3,000,000
Long-term Line of Credit, Total	$ 4,200,000					0
Debt, Weighted Average Interest Rate	2.57%
Debt Instrument, Covenants, Fixed Charge Coverage Ratio	1.10
Letters of Credit Outstanding, Amount	$ 0					0
PNC Bank [Member] | Revolving Credit Facility [Member] | Subsequent Event [Member]
Line of Credit Facility, Maximum Borrowing Capacity		$ 3,000,000	$ 5,000,000
PNC Bank [Member] | Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate	2.50%
JP Morgan Chase Bank [Member]
Letters of Credit Outstanding, Amount	$ 72,418					$ 72,418

Note 10 - Stockholders' Equit_2

Note 10 - Stockholders' Equity (Details Textual) - $ / shares	Jan. 21, 2022	Oct. 20, 2021	Sep. 01, 2021	Sep. 01, 2020	Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022	Feb. 28, 2021
Stock Repurchased and Retired During Period, Shares (in shares)							0	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)							174,840	419,874
Common Stock, Dividends, Per Share, Declared (in dollars per share)	$ 0.07	$ 0.07			$ 0.07	$ 0.065	$ 0.14	$ 0.065
Stock Issued During Period, Shares, Employee Stock Purchase Plans (in shares)			2,636	4,646
The 2019 Plan [member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)							895,484
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)					704,516		704,516
The 2019 Plan [member] | Employees and Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)							174,840	419,874
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)							$ 16.97	$ 8.24
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Including Cashless Exercises (in shares)							43,218
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price (in dollars per share)							$ 6.45
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period (in shares)							34,071	0
ESPP [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)					72,186		72,186

Note 10 - Stockholders' Equit_3

Note 10 - Stockholders' Equity - Cash Dividends Declared (Details) - $ / shares	Jan. 21, 2022	Oct. 20, 2021	Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022	Feb. 28, 2021
Amount (in dollars per share)	$ 0.07	$ 0.07	$ 0.07	$ 0.065	$ 0.14	$ 0.065
Record date	Feb. 2, 2022	Nov. 3, 2021
Payable date	Feb. 16, 2022	Nov. 17, 2021

Note 11 - Net Income Per Comm_3

Note 11 - Net Income Per Common Share (Details Textual) - shares	3 Months Ended		6 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022	Feb. 28, 2021
Share-based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	311,061	136,221	311,061	136,221

Note 11 - Net Income Per Comm_4

Note 11 - Net Income Per Common Share - Reconciliation of the Earnings Per Share Computations (Details) - USD ($)	3 Months Ended		6 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022	Feb. 28, 2021
Net income	$ 182,847	$ 1,312,575	$ 4,676,606	$ 2,574,974
Basic – weighted shares outstanding (in shares)	9,214,817	9,104,636	9,211,858	9,104,623
Weighted shares assumed upon exercise of stock options (in shares)	468,609	763,282	524,202	651,645
Diluted – weighted shares outstanding (in shares)	9,683,426	9,867,918	9,736,060	9,756,268
Basic net income per share: (in dollars per share)	$ 0.02	$ 0.14	$ 0.51	$ 0.28
Diluted net income per share: (in dollars per share)	$ 0.02	$ 0.13	$ 0.48	$ 0.26

Note 12 - Stock-based Compens_3

Note 12 - Stock-based Compensation (Details Textual) - USD ($)	Jan. 15, 2021	Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022	Feb. 28, 2021
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)				174,840	419,874
Share-based Payment Arrangement, Expense		$ 133,334	$ 66,667	$ 266,668	$ 133,334
Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount		$ 1,475,485		1,475,485
Allocated Share-based Compensation Expense, Estimate Remainder of Fiscal Year				465,766
Allocated Share-based Compensation Expense, Estimate, Fiscal Year Two				671,526
Allocated Share Based Compensation Expense, Estimate, Fiscal Year Three				$ 338,193
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)				$ 7.29	$ 3.12
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term (Year)				6 years 3 months	6 years 7 months 24 days
The 2019 Plan [member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized (in shares)	800,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)		1,600,000		1,600,000
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)				10 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)				895,484
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)		704,516		704,516
The 2019 Plan [member] | One Year after Date of Grant [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)				1 year
The 2019 Plan [member] | One Year after Date of Grant [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)				3 years
The 2007 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance (in shares)		662,789		662,789

Note 12 - Stock-based Compens_4

Note 12 - Stock-based Compensation - Black-Scholes Option-pricing Model Assumptions (Details)	6 Months Ended
	Feb. 28, 2022	Feb. 28, 2021
Dividend yield	1.65%	2.37%
Expected volatility	45.40%	45.60%
Expected life of option (in years) (Year)	10 years	10 years
Average risk-free interest rate	0.77%	0.28%

Note 13 - Segment and Geograp_3

Note 13 - Segment and Geographic Information (Details Textual)	6 Months Ended
	Feb. 28, 2022
Number of Reportable Segments	2

Note 13 - Segment and Geograp_4

Note 13 - Segment and Geographic Information - Net Sales by Segment (Details) - USD ($)	3 Months Ended		6 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022	Feb. 28, 2021
Net sales	$ 16,748,639	$ 12,782,882	$ 34,942,052	$ 25,561,994
ZERUST [Member]
Net sales	13,117,777	10,284,116	27,541,562	20,504,667
NaturTec [Member]
Net sales	$ 3,630,862	$ 2,498,766	$ 7,400,490	$ 5,057,327

Note 13 - Segment and Geograp_5

Note 13 - Segment and Geographic Information - Cost of Goods Sold by Segment (Details) - USD ($)		3 Months Ended		6 Months Ended
		Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022		Feb. 28, 2021
Cost of goods sold		$ 11,764,304	$ 8,531,679	$ 24,254,787	[1]	$ 16,845,000	[1]
Direct Cost of Goods Sold [Member] | ZERUST [Member]
Cost of goods sold		$ 8,151,274	$ 6,065,963	$ 16,857,941	[1]	$ 11,837,052	[1]
Percent of product sales	[1]	62.10%	59.00%	61.20%		57.70%
Direct Cost of Goods Sold [Member] | NaturTec [Member]
Cost of goods sold		$ 2,775,436	$ 1,684,180	$ 5,697,533	[1]	$ 3,451,810	[1]
Percent of product sales	[1]	76.40%	67.40%	77.00%		68.30%
Indirect Cost of Goods Sold [Member]
Cost of goods sold		$ 837,594	$ 781,536	$ 1,699,313	[1]	$ 1,556,138	[1]
[1]	The percent of segment sales is calculated by dividing the direct cost of goods sold for each individual segment category by the net sales for each segment category.

Note 13 - Segment and Geograp_6

Note 13 - Segment and Geographic Information - Net Sales by Geographic Location (Details) - USD ($)	3 Months Ended		6 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022	Feb. 28, 2021
Net sales	$ 16,748,639	$ 12,782,882	$ 34,942,052	$ 25,561,994
Inside the USA to Unaffiliated Customers [Member]
Net sales	5,115,963	4,619,130	11,272,285	9,480,485
Joint Ventures in Which the Company is a Shareholder Directly and Indirectly Outside the USA [Member]
Net sales	883,513	526,942	1,723,952	1,107,246
Unaffiliated Customers Outside the USA [Member]
Net sales	$ 10,749,163	$ 7,636,810	$ 21,945,815	$ 14,974,262

Note 13 - Segment and Geograp_7

Note 13 - Segment and Geographic Information - Fees for Services Provided to Joint Ventures by Geographic Location as a Percentage of Total Fees (Details) - USD ($)	3 Months Ended		6 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022	Feb. 28, 2021
Fees	$ 1,246,909	$ 1,462,684	$ 2,505,767	$ 2,799,245
Percentage of Total Fees	100.00%	100.00%	100.00%	100.00%
GERMANY
Fees	$ 216,992	$ 231,917	$ 435,422	$ 460,744
Percentage of Total Fees	17.40%	15.90%	17.40%	16.50%
POLAND
Fees	$ 172,700	$ 210,943	$ 349,626	$ 400,353
Percentage of Total Fees	13.90%	14.40%	14.00%	14.30%
JAPAN
Fees	$ 151,933	$ 181,493	$ 318,740	$ 361,455
Percentage of Total Fees	12.20%	12.40%	12.70%	12.90%
FRANCE
Fees	$ 115,663	$ 97,638	$ 231,958	$ 203,545
Percentage of Total Fees	9.30%	6.70%	9.30%	7.30%
SWEDEN
Fees	$ 99,178	$ 146,896	$ 207,248	$ 237,385
Percentage of Total Fees	8.00%	10.00%	8.30%	8.50%
UNITED KINGDOM
Fees	$ 86,736	$ 71,759	$ 126,800	$ 163,298
Percentage of Total Fees	7.00%	4.90%	5.10%	5.80%
THAILAND
Fees	$ 87,918	$ 107,377	$ 181,663	$ 133,674
Percentage of Total Fees	7.10%	7.30%	7.20%	4.80%
KOREA, REPUBLIC OF
Fees	$ 64,173	$ 78,220	$ 175,472	$ 197,309
Percentage of Total Fees	5.10%	5.30%	7.00%	7.00%
FINLAND
Fees	$ 85,426	$ 71,496	$ 165,599	$ 147,779
Percentage of Total Fees	6.90%	4.90%	6.60%	5.30%
CZECHIA
Fees	$ 69,386	$ 89,538	$ 139,483	$ 158,891
Percentage of Total Fees	5.60%	6.10%	5.60%	5.70%
Other Countries [Member]
Fees	$ 96,804	$ 175,407	$ 173,756	$ 334,811
Percentage of Total Fees	7.50%	12.00%	6.80%	12.00%

Note 13 - Segment and Geograp_8

Note 13 - Segment and Geographic Information - Total Long-lived Assets by Geographic Distribution (Details) - USD ($)	Feb. 28, 2022	Aug. 31, 2021
Total long-lived assets	$ 13,054,504	$ 12,531,031
CHINA
Total long-lived assets	5,615,383	5,110,071
Other Countries [Member]
Total long-lived assets	655,837	453,199
UNITED STATES
Total long-lived assets	$ 6,783,284	$ 6,967,761

Note 13 - Segment and Geograp_9

Note 13 - Segment and Geographic Information - Total Net Sales by Geographic Distribution (Details) - USD ($)	3 Months Ended		6 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022	Feb. 28, 2021
Net sales	$ 16,748,639	$ 12,782,882	$ 34,942,052	$ 25,561,994
CHINA
Net sales	4,163,741	4,443,656	8,221,593	8,987,634
BRAZIL
Net sales	936,089	804,569	2,232,306	1,518,422
INDIA
Net sales	4,068,781	1,295,006	8,545,765	2,495,474
Other Countries [Member]
Net sales	2,464,066	1,620,521	4,670,103	3,079,978
UNITED STATES
Net sales	$ 5,115,962	$ 4,619,130	$ 11,272,285	$ 9,480,486

Note 14 - Commitments and Con_2

Note 14 - Commitments and Contingencies (Details Textual) - USD ($)	6 Months Ended
	Feb. 28, 2022	Feb. 28, 2021
Accrued Bonuses	$ 666,668	$ 1,033,334
Entity Wide Trade Joint Venture Receivables, Two Joint Ventures, Percentage	33.80%
Entity Wide Trade Joint Venture Receivables, Three Joint Ventures, Percentage		72.10%
Fiscal 2018 Bonus Plan [Member] | Executive Officer [Member]
Percentage of Individual Bonus Payout Determined by Actual Versus Targeted EBITOI Results	75.00%
Percentage of Individuals Payout Determined Upon Achievement of Certain Pre-Established Individual Performance Objectives	25.00%

Note 15 - Fair Value Measurem_3

Note 15 - Fair Value Measurements - Assets and Liabilities Measured at Fair Value Recurring Basis (Details) - Fair Value, Recurring [Member] - USD ($)	Feb. 28, 2022	Aug. 31, 2021
Available for sale securities	$ 4,634	$ 4,634
Fair Value, Inputs, Level 1 [Member]
Available for sale securities	4,634	4,634
Fair Value, Inputs, Level 2 [Member]
Available for sale securities	0	0
Fair Value, Inputs, Level 3 [Member]
Available for sale securities	$ 0	$ 0

Note 16 - Supplemental Cash F_3

Note 16 - Supplemental Cash Flow Information - Supplemental Disclosures of Cash Flow Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022	Feb. 28, 2021
Cash paid for interest	$ 7,404	$ 5,249	$ 10,295	$ 7,617

Note 17 - Income Taxes (Details

Note 17 - Income Taxes (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022	Feb. 28, 2021
Income Tax Expense (Benefit), Total	$ 151,743	$ 274,660	$ 656,123	$ 653,250