Northern Technologies International (NTIC) 10-Q 11 Apr 16 2016 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Feb. 29, 2016	Apr. 08, 2016
Entity Registrant Name	Northern Technologies International Corporation
Entity Central Index Key	875,582
Trading Symbol	ntic
Current Fiscal Year End Date	--08-31
Entity Filer Category	Accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Common Stock, Shares Outstanding (in shares)		4,536,022
Document Type	10-Q
Document Period End Date	Feb. 29, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q2
Amendment Flag	false

Consolidated Balance Sheets (Cu

Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Feb. 29, 2016	Aug. 31, 2015
CURRENT ASSETS:
Cash and cash equivalents	$ 2,531,340	$ 2,623,981
Available for sale securities	2,733,079	2,027,441
Trade excluding joint ventures, less allowance for doubtful accounts of $40,000 at February 29, 2016 and August 31, 2015	4,139,536	4,027,167
Trade joint ventures	764,017	645,377
Fees for services provided to joint ventures	1,206,625	1,449,162
Income taxes	541,431	198,462
Inventories	7,300,153	7,468,441
Prepaid expenses	586,042	411,473
Deferred income taxes	424,108	424,108
Total current assets	20,226,331	19,275,612
PROPERTY AND EQUIPMENT, NET	7,310,826	7,293,163
OTHER ASSETS:
Investments in joint ventures	17,952,996	20,544,238
Investments at carrying value (Note 7)	1,883,668	1,883,668
Deferred income taxes	1,175,290	1,176,012
Patents and trademarks, net	1,230,760	1,262,219
Other	218,954	130,736
Total other assets	22,461,668	24,996,873
Total assets	49,998,825	51,565,648
CURRENT LIABILITIES:
Accounts payable	1,866,737	2,101,175
Accrued liabilities:
Payroll and related benefits	475,634	1,056,257
Other	402,903	514,409
Total current liabilities	$ 2,745,274	$ 3,671,841
COMMITMENTS AND CONTINGENCIES (Note 18)
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 10,000,000 shares; issued and outstanding 4,536,022 and 4,539,045, respectively	90,720	90,781
Additional paid-in capital	13,629,454	13,441,264
Retained earnings	34,180,731	34,522,871
Accumulated other comprehensive loss	(3,653,208)	(3,180,811)
Stockholders’ equity	44,247,697	44,874,105
Non-controlling interest	3,005,854	3,019,702
Total equity	47,253,551	47,893,807
Total liabilities and equity	$ 49,998,825	$ 51,565,648

Consolidated Balance Sheets (C3

Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($)	Feb. 29, 2016	Aug. 31, 2015
Trade allowance	$ 40,000	$ 40,000
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)	10,000,000	10,000,000
Common stock, shares issued (in shares)	4,536,022	4,539,045
Common stock, shares outstanding (in shares)	4,536,022	4,539,045

Consolidated Statements of Oper

Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Feb. 29, 2016	Feb. 28, 2015	Feb. 29, 2016		Feb. 28, 2015
NET SALES:
Net sales, excluding joint ventures	$ 7,027,614	$ 5,995,543	$ 13,529,024		$ 12,476,534
Net sales, to joint ventures	677,320	733,166	1,200,347		1,466,270
Total net sales	7,704,934	6,728,709	14,729,371		13,942,804
Cost of goods sold	5,268,224	4,657,740	10,143,647	[1]	9,464,351	[1]
Gross profit	2,436,710	2,070,969	4,585,724		4,478,453
JOINT VENTURE OPERATIONS:
Equity in income of joint ventures	952,667	1,474,649	1,936,420		3,081,332
Fees for services provided to joint ventures	971,042	994,860	2,456,471		3,128,530
Total joint venture operations	1,923,709	2,469,509	4,392,891		6,209,862
OPERATING EXPENSES:
Selling expenses	1,475,433	1,339,441	3,000,516		2,734,328
General and administrative expenses	1,509,087	1,552,861	3,366,700		3,091,123
Expenses incurred in support of joint ventures	297,470	656,127	614,464		1,183,244
Research and development expenses	1,113,525	854,256	2,117,622		1,904,169
Total operating expenses	4,395,515	4,402,685	9,099,302		8,912,864
OPERATING (LOSS) INCOME	(35,096)	137,793	(120,687)		1,775,451
INTEREST INCOME	14,384	2,434	28,557		17,561
INTEREST EXPENSE	(10,796)	(3,223)	(15,522)		(8,228)
OTHER INCOME	961	2,145	961		2,145
(LOSS) INCOME BEFORE INCOME TAX EXPENSE	(30,547)	139,149	(106,691)		1,786,929
INCOME TAX EXPENSE	40,466	197,614	36,964		381,298
NET (LOSS) INCOME	(71,013)	(58,465)	(143,655)		1,405,631
NET INCOME ATTRIBUTABLE TO NON-CONTROLLING INTERESTS	36,776	70,179	198,485		526,010
NET (LOSS) INCOME ATTRIBUTABLE TO NTIC	$ (107,789)	$ (128,644)	$ (342,140)		$ 879,621
NET (LOSS) INCOME ATTRIBUTABLE TO NTIC PER COMMON SHARE:
Basic (in dollars per share)	$ (0.02)	$ (0.03)	$ (0.08)		$ 0.20
Diluted (in dollars per share)	$ (0.02)	$ (0.03)	$ (0.08)		$ 0.19
WEIGHTED AVERAGE COMMON SHARES ASSUMED OUTSTANDING:
Basic (in shares)	4,537,429	4,522,514	4,536,995		4,516,311
Diluted (in shares)	4,537,429	4,522,514	4,536,995		4,655,792
[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 (Loss) (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Feb. 29, 2016	Feb. 28, 2015	Feb. 29, 2016	Feb. 28, 2015
NET (LOSS) INCOME	$ (71,013)	$ (58,465)	$ (143,655)	$ 1,405,631
OTHER COMPREHENSIVE INCOME (LOSS) – FOREIGN CURRENCY TRANSLATION ADJUSTMENT	380,398	(1,980,209)	(484,730)	(3,256,425)
COMPREHENSIVE INCOME (LOSS)	309,385	(2,038,674)	(628,385)	(1,850,794)
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO NON-CONTROLLING INTERESTS	21,377	(142,134)	186,152	242,557
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO NTIC	$ 288,008	$ (1,896,540)	$ (814,537)	$ (2,093,351)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Feb. 29, 2016	Feb. 28, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:
Net (loss) income	$ (143,655)	$ 1,405,631
Adjustments to reconcile net (loss) income to net cash used in operating activities:
Stock-based compensation	223,715	261,159
Depreciation expense	321,437	245,432
Amortization expense	$ 59,517	43,833
Loss on disposal of assets		13,847
Equity in income from joint ventures	$ (1,936,420)	(3,081,332)
Dividends received from joint ventures	4,054,606	2,696,963
Receivables:
Trade, excluding joint ventures	(165,856)	(166,033)
Trade, joint ventures	(118,640)	166,554
Fees for services provided to joint ventures	242,537	1,128,841
Income taxes	(355,200)	(300,735)
Inventories	111,146	(102,370)
Prepaid expenses and other	(162,301)	(127,367)
Accounts payable	(174,609)	(558,041)
Income tax payable	2,564	14,644
Accrued liabilities	(710,031)	(1,248,986)
Net cash provided by operating activities	$ 1,248,810	392,041
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from the sale of available for sale securities		$ 1,994,781
Purchase of available for sale securities	$ (705,638)
Additions to property and equipment	(346,872)	$ (897,582)
Additions to patents	(28,057)	(106,707)
Net cash (used in) provided by investing activities	(1,080,567)	990,492
CASH FLOWS FROM FINANCING ACTIVITIES:
Dividend received by non-controlling interest	(200,000)	$ (560,000)
Repurchase of common stock	(70,549)
Proceeds from employee stock purchase plan	$ 34,963	$ 22,620
Proceeds from exercise of stock options		99,450
Net cash used in financing activities	$ (235,586)	(437,930)
EFFECT OF EXCHANGE RATE CHANGES ON CASH:	(25,298)	(56,231)
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(92,641)	888,372
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	2,623,981	2,477,017
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$ 2,531,340	$ 3,365,389

Note 1 - Interim Financial Info

Note 1 - Interim Financial Information	6 Months Ended
	Feb. 29, 2016
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 29, 2016 and August 31, 2015 and the results of their operations for the three and six months ended February 29, 2016 and February 28, 2015 and their cash flows for the six months ended February 29, 2016 and February 28, 2015, in conformity with accounting principles generally accepted in the United States of America (U.S. GAAP). 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-K for the fiscal year ended August 31, 2015. These consolidated financial statements also should be read in conjunction with the “Management’s Discussion and Analysis of Financial Condition and Results of Operations” section appearing in this report. Operating results for the three and six months ended February 29, 2016 are not necessarily indicative of the results that may be expected for the full fiscal year ending August 31, 2016. The Company evaluates events occurring after the date of the consolidated financial statements requiring recording or disclosure in the consolidated financial statements. Certain amounts reported in the consolidated financial statements for the previous reporting periods have been reclassified to conform to the current period presentation. Beginning in the quarter ended February 28, 2015, the Company reclassified dividends received from equity method investments from investing cash flows to operating cash flows on the consolidated statements of cash flows for all periods presented. The classification reflects the continued profitability and returns of those profits to its owners, including the Company. The reclassification did not impact net income (loss) or equity.

Note 2 - Recently Issued Accoun

Note 2 - Recently Issued Accounting Pronouncements	6 Months Ended
	Feb. 29, 2016
Notes to Financial Statements
Description of New Accounting Pronouncements Not yet Adopted [Text Block]	2. Recently Issued Accounting PronouncementS In May 2014, the Financial Accounting Standards Board (FASB) issued Revenue from Contracts with Customers, Topic 606 In July 2015, the FASB issued ASU No. 2015-11, “ Inventory In November 2015, FASB issued ASU 2015-17, Income Taxes (Topic 740) Balance Sheet Classification of Deferred Taxes During February 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2016-02, “ Leases In March 2016, the FASB issued ASU No. 2016-07, “ Investments – Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting In March 2016, the FASB issued ASU 2016-09, Stock Compensation 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 believe any of these accounting pronouncements has had or will have a material impact on the Company’s consolidated financial position or operating results.

Note 3 - Inventories

Note 3 - Inventories	6 Months Ended
	Feb. 29, 2016
Notes to Financial Statements
Inventory Disclosure [Text Block]	3. INVENTORIES Inventories consisted of the following: February 29, 2016 August 31, 2015 Production materials $ 1,104,151 $ 1,445,014 Finished goods 6,196,002 6,023,427 $ 7,300,153 $ 7,468,441

Note 4 - Property and Equipment

Note 4 - Property and Equipment, Net	6 Months Ended
	Feb. 29, 2016
Notes to Financial Statements
Property, Plant and Equipment Disclosure [Text Block]	4. PROPERTY AND EQUIPMENT, NET Property and equipment, net consisted of the following: February 29, 2016 August 31, 2015 Land $ 310,365 $ 310,365 Buildings and improvements 6,439,751 6,180,089 Machinery and equipment 4,161,325 4,090,619 10,911,441 10,581,073 Less accumulated depreciation (3,600,615 ) (3,287,910 ) $ 7,310,826 $ 7,293,163

Note 5 - Patents and Trademarks

Note 5 - Patents and Trademarks, Net	6 Months Ended
	Feb. 29, 2016
Notes to Financial Statements
Intangible Assets Disclosure [Text Block]	5. PATENTS AND TRADEMARKS, NET Patents and trademarks, net consisted of the following: February 29, 2016 August 31, 2015 Patents and trademarks $ 2,468,080 $ 2,440,022 Less accumulated amortization (1,237,320 ) (1,177,803 ) $ 1,230,760 $ 1,262,219 Patent and trademark costs are amortized over seven years. Costs incurred related to patents and trademarks are capitalized until filed and approved, at which time the amounts capitalized to date are amortized and any further costs, including maintenance costs, are expensed as incurred. Amortization expense is estimated to approximate $100,000 in each of the next five fiscal years.

Note 6 - Investments in Joint V

Note 6 - Investments in Joint Ventures	6 Months Ended
	Feb. 29, 2016
Notes to Financial Statements
Equity Method Investments and Joint Ventures Disclosure [Text Block]	6. INVESTMENTS IN JOINT VENTURES The 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 accounting principles generally accepted in the United States of America in all material respects. All material profits recorded on sales 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 of the Company’s other joint ventures, are summarized as follows: February 29, 2016 Total EXCOR All Other Current assets $ 44,915,882 $ 20,543,914 $ 24,371,968 Total assets 48,456,556 22,412,469 26,044,087 Current liabilities 12,346,248 3,517,274 8,828,974 Noncurrent liabilities 89,039 — 89,039 Joint ventures’ equity 36,021,269 18,895,195 17,126,074 Northern Technologies International Corporation’s share of joint ventures’ equity 17,952,996 9,447,599 8,505,397 Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings $ 15,892,135 $ 9,416,694 $ 6,475,441 August 31, 2015 Total EXCOR All Other Current assets $ 49,295,116 $ 22,620,323 $ 26,674,793 Total assets 52,853,938 24,606,880 28,247,058 Current liabilities 12,288,383 3,360,142 8,928,241 Noncurrent liabilities 1,215,139 — 1,215,139 Joint ventures’ equity 39,350,417 21,246,738 18,103,679 Northern Technologies International Corporation’s share of joint ventures’ equity 20,544,238 11,571,361 8,972,877 Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings $ 18,483,377 $ 11,540,456 $ 6,942,921 Six Months Ended February 29, 2016 Total EXCOR All Other Net sales $ 42,000,424 $ 15,618,735 $ 26,381,689 Gross profit 18,523,102 8,059,186 10,463,916 Net income 3,872,728 2,960,951 911,777 Northern Technologies International Corporation’s share of equity in income of joint ventures $ 1,936,420 $ 1,480,975 $ 455,445 Six Months Ended February 28, 2015 Total EXCOR Tianjin All Other Net sales $ 52,178,238 $ 18,383,653 $ 3,735,457 $ 30,059,128 Gross profit 25,540,546 9,766,973 1,783,673 13,989,900 Net income 6,152,182 3,924,547 265,648 1,961,987 Northern Technologies International Corporation’s share of equity in income of joint ventures $ 3,081,331 $ 1,962,047 $ 132,824 $ 986,460 On January 2, 2015, the Company announced that, effective as of December 31, 2014, the Company terminated its joint venture arrangement in China, Tianjin-Zerust Anticorrosion Co., Ltd. (Tianjin Zerust), and began the process of liquidating the joint venture entity. Since December 31, 2014, the Company has conducted business in China through a wholly-owned subsidiary, NTIC (Shanghai) Co. Ltd. (NTIC China). As of December 31, 2014, the Company started recognizing Tianjin Zerust based on its carrying value instead of the equity method since the Company no longer expects to significantly affect the joint venture’s operations or decision making. See note 7. The Company records expenses that are directly attributable to the joint ventures on its consolidated statements of operations in the line item “Expenses incurred in support of joint ventures.” The expenses include items such as employee compensation and benefit expenses, travel expense and consulting expense. See Note 13 regarding the lawsuits filed in relation to Tianjin Zerust. The Company did not make any joint venture investments during the six months ended February 29, 2016 and February 28, 2015.

Note 7 - China Operations

Note 7 - China Operations	6 Months Ended
	Feb. 29, 2016
Notes to Financial Statements
Fair Value Disclosures [Text Block]	7. CHINA OPERATIONS Effective December 31, 2014, the Company terminated its joint venture agreements with its previous joint venture in China, Tianjin Zerust, began the process of liquidating the joint venture entity, and commenced operations in China through a wholly-owned subsidiary, NTIC (Shanghai) Co. Ltd. on January 1, 2015. Effective December 31, 2014, the Company’s investment in Tianjin Zerust is reported at carrying value based on the Company’s decreased level of influence over the entity, and the Company has reclassified previously unrecognized gains on foreign currency translation from accumulated other comprehensive income. Any declines in the fair value are reflected as adjustments to the carrying value. No such adjustments were recorded during the six months ended February 29, 2016. Because of the lack of financial and other information received from Tianjin Zerust, it is possible that receipt of future financial and other information from Tianjin Zerust may impact the realization of the Company’s investment in and realization of a receivable from Tianjin Zerust. The last time the Company received financial information from Tianjin Zerust was through November 2014. The Company, as of February 29, 2016, does not believe there are any triggering events that would require an impairment test. The Company’s current net investment is approximately $1,130,200, which is 60% of its investment in Tianjin Zerust, which was $1,883,668 as of February 29, 2016. The Company will continue to evaluate the realization of this asset on an ongoing basis and adjust if necessary. The Company incurred expenses of $1,418,392 and $883,000 during the six months ended February 29, 2016 and February 28, 2015, respectively, related to the termination of the joint venture agreement with Tianjin Zerust, the initiation of the liquidation of Tianjin Zerust and the formation and initial operation of NTIC China. Such expenses consisted primarily of legal expenses and personnel expenses associated with the establishment of the subsidiary and the hiring of new personnel. These expenses are recorded as operating expenses on the consolidated statements of operations and are partially offset by the gross margin contribution from sales of NTIC China. Because of the lack of financial and other information received from Tianjin Zerust, it is possible that if and when financial and other information is received from Tianjin Zerust that the Company may need to recognize an impairment charge on its investment in Tianjin Zerust. The Company estimates that its maximum exposure in terms of an impairment charge would be approximately $1,130,200, which is 60% of its investment in Tianjin Zerust, which was $1,883,668 as of February 29, 2016. See Note 13 regarding pending litigation involving Tianjin Zerust.

Note 8 - Corporate Debt

Note 8 - Corporate Debt	6 Months Ended
	Feb. 29, 2016
Notes to Financial Statements
Debt Disclosure [Text Block]	8. CORPORATE DEBT The Company has a revolving line of credit with PNC Bank of $3,000,000. No amounts were outstanding under the line of credit as of both February 29, 2016 and August 31, 2015. At the option of the Company, outstanding advances under the line of credit bear interest at either (a) an annual rate based on LIBOR plus 2.15% for the applicable LIBOR interest period selected by the Company or (b) at the rate publicly announced by PNC Bank from time to time as its prime rate. Interest is payable in arrears (a) for the portion of advances bearing interest under the prime rate on the last day of each month during the term thereof and (b) for the portion of advances bearing interest under the LIBOR option on the last day of the respective LIBOR interest period selected for such advance. Any unpaid interest is payable on the maturity date. The revolving line of credit is secured by cash, receivables and inventory. The line of credit is governed under a loan agreement. The loan agreement contains standard covenants, including affirmative financial covenants, such as the maintenance of a minimum fixed charge coverage ratio, and negative covenants, which, among other things, limit the incurrence of additional indebtedness, loans and equity investments, disposition of assets, mergers and consolidations and other matters customarily restricted in such agreements. Under the loan agreement, the Company is subject to a minimum fixed charge coverage ratio of 1.10:1.00. As of February 29, 2016, the Company was in compliance with all debt covenants. On January 6, 2016, PNC Bank extended the maturity date of the line of credit from January 7, 2016 to January 7, 2017. All other terms of the line of credit and the loan agreement and other documents evidencing the line of credit remain the same.

Note 9 - Stockholders' Equity

Note 9 - Stockholders' Equity	6 Months Ended
	Feb. 29, 2016
Notes to Financial Statements
Stockholders' Equity Note Disclosure [Text Block]	9. STOCKHOLDERS’ EQUITY During the six months ended February 29, 2016, the Company repurchased and retired 5,461 shares of its common stock. During the six months ended February 28, 2015, the Company did not repurchase or retire any shares of its common stock. The Company granted stock options under the Northern Technologies International Corporation Amended and Restated 2007 Stock Incentive Plan (the 2007 Plan) to purchase an aggregate of 53,447 shares of its common stock to various employees and directors during the six months ended February 29, 2016. The weighted average per share exercise price of the stock options is $14.85, which is equal to the fair market value of the Company’s common stock on the date of grant. During the six months ended February 29, 2016, no stock options to purchase shares of common stock were exercised. The Company granted stock options under the 2007 Plan to purchase an aggregate of 45,067 shares of its common stock to various employees and directors during the six months ended February 28, 2015. The weighted average per share exercise price of the stock options is $20.10, which was equal to the fair market value of the Company’s common stock on the date of grant. The following stock options to purchase shares of common stock were exercised during the six months ended February 28, 2015: Options Exercised Exercise Price 18,000 $7.65 2,333 $10.20

Note 10 - Net (Loss) Income Per

Note 10 - Net (Loss) Income Per Common Share	6 Months Ended
	Feb. 29, 2016
Notes to Financial Statements
Earnings Per Share [Text Block]	1 0. NET (LOSS) INCOME PER COMMON SHARE Basic net (loss) income per common share is computed by dividing net (loss) income by the weighted average number of common shares outstanding. Diluted net (loss) income per share assumes the exercise of stock options using the treasury stock method, if dilutive. The following is a reconciliation of the (loss) income per share computation: Three Months Ended Six Months Ended Numerators: February 29, February 28, February 29, February 28, Net (loss) income attributable to NTIC $ (107,789 ) $ (128,644 ) $ (342,140 ) $ 876,621 Denominators: Basic – weighted shares outstanding 4,537,429 4,522,514 4,536,995 4,516,311 Weighted shares assumed upon exercise of stock options - - - 139,481 Diluted – weighted shares outstanding 4,537,429 4,522,514 4,536,995 4,655,792 Basic (loss) income per share: $ (0.02 ) $ (0.03 ) $ (0.08 ) $ 0.20 Diluted (loss) income per share: $ (0.02 ) $ (0.03 ) $ (0.08 ) $ 0.19 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. (Loss) income per share were based on the weighted average number of shares of common stock outstanding during the periods when computing the basic (loss) income per share. When dilutive, stock options are included as equivalents using the treasury stock market method when computing the diluted (loss) income per share. There were no options outstanding as of February 29, 2016 that were dilutive. Excluded from the computation of diluted (loss) income per share for the three and six months ended February 29, 2016 were all options outstanding to purchase 283,181 shares of common stock, due to the Company’s net loss in the period. Excluded from the computation of diluted (loss) income per share for the three months ended February 28, 2015 were all options outstanding to purchase 263,734 shares of common stock, due to the Company’s net loss in the period.

Note 11 - Stock-Based Compensat

Note 11 - Stock-Based Compensation	6 Months Ended
	Feb. 29, 2016
Notes to Financial Statements
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	11. STOCK-BASED COMPENSATION The Company has two stock-based compensation plans under which stock options and other stock-based awards have been granted, the Northern Technologies International Corporation Amended and Restated 2007 Stock Incentive Plan and the Northern Technologies International Corporation Employee Stock Purchase Plan (the ESPP). The Compensation Committee of the Board of Directors and the Board of Directors administer these plans. The 2007 Plan provides for the grant of incentive stock options, non-statutory stock options, stock appreciation rights, restricted stock, stock unit awards, performance awards and stock bonuses to eligible recipients to enable the Company and its subsidiaries to attract and retain qualified individuals through opportunities for equity participation in the Company, and to reward those individuals who contribute to the achievement of the Company’s economic objectives. Subject to adjustment as provided in the 2007 Plan, up to a maximum of 800,000 shares of the Company’s common stock are issuable under the 2007 Plan. Options granted under the 2007 Plan generally have a term of ten years and become exercisable over a three- or four-year period beginning on the one-year anniversary of the date of grant. Options are granted at per share exercise prices equal to the market value of the Company’s common stock on the date of grant. The Company issues new shares upon the exercise of options. As of February 29, 2016, only stock options and stock bonuses had been granted under the 2007 Plan. The maximum number of shares of common stock of the Company available for issuance under the ESPP is 100,000 shares, subject to adjustment as provided in the ESPP. The ESPP provides for six-month offering periods beginning on September 1 and March 1 of each year. The purchase price of the shares is 90% of the lower of the fair market value of common stock at the beginning or end of the offering period. This discount may not exceed the maximum discount rate permitted for plans of this type under Section 423 of the Internal Revenue Code of 1986, as amended. The ESPP is compensatory for financial reporting purposes. The Company issued 2,439 and 1,948 shares on September 1, 2015 and 2014, respectively, under the ESPP. The Company granted options to purchase an aggregate of 53,447 and 45,067 shares of its common stock during the six months ended February 29, 2016 and February 28, 2015, respectively. The fair value of option grants is determined at date of grant, using the Black-Scholes option pricing model with the assumptions listed below. The Company recognized compensation expense of $223,715 and $261,159 during the six months ended February 29, 2016 and February 28, 2015, respectively, related to the options that vested during such time period. As of February 29, 2016, the total compensation cost for nonvested options not yet recognized in the Company’s consolidated statements of operations was $443,123, net of estimated forfeitures. Stock-based compensation expense of $203,723 is expected through the remainder of fiscal year 2016, and $159,600 and $79,800 is expected to be recognized during fiscal 2017 and fiscal 2018, respectively, based on outstanding options as of February 29, 2016. Future option grants will impact the compensation expense recognized. Stock-based compensation expense is included in general and administrative expense on the consolidated statements of operations. The Company currently estimates a ten percent forfeiture rate for stock options and continually reviews this estimate for future periods. 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: Six Months Ended February 29, February 28, Dividend yield 0.00 % 0.00 % Expected volatility 46.0 % 46.6 % Expected life of option 10 years 10 years Average risk-free interest rate 1.63 % 1.63 % The weighted average per share fair value of options granted during six months ended February 29, 2016 and February 28, 2015 was $8.48 and $11.58, respectively. The weighted average remaining contractual life of the options outstanding as of February 29, 2016 was 6.96 years.

Note 12 - Geographic and Segmen

Note 12 - Geographic and Segment Information	6 Months Ended
	Feb. 29, 2016
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	12. 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 40 years, and more recently, has targeted and expanded into the oil and gas industry. The Company also sells a portfolio of bio-based and compostable (fully biodegradable) polymer resins and finished products under the Natur-Tec® brand. The following table sets forth the Company’s net sales for the three and six months ended February 29, 2016 and February 28, 2015 by segment: Three Months Ended Six Months Ended February 29, February 28, February 29, February 28, ZERUST® net sales $ 6,385,337 $ 5,783,985 $ 12,363,019 $ 12,022,056 Natur-Tec® net sales 1,319,597 944,724 2,366,352 1,920,748 Total net sales $ 7,704,934 $ 6,728,709 $ 14,729,371 $ 13,942,804 The following table sets forth the Company’s cost of goods sold for the three and six months ended February 29, 2016 and February 28, 2015 by segment: Three Months Ended Six Months Ended February 29, 2016 % of February 28, 2015 % of February % of February % of Direct cost of goods sold ZERUST® $ 3,576,073 56.0 % $ 3,171,103 54.8 % $ 6,940,628 56.1 % $ 6,509,691 54.1 % Natur-Tec® 984,938 74.6 % 719,048 76.1 % 1,819,197 76.9 % 1,501,623 78.2 % Indirect cost of goods sold 707,213 — 767,589 — 1,383,822 — 1,453,037 — Total net cost of goods sold $ 5,268,224 $ 4,657,740 $ 10,143,647 $ 9,464,351 ___________________ * 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 utilized in evaluating product performance, nor does such allocation occur for internal financial reporting. Geographic Information Net sales by geographic location for the three and six months ended February 29, 2016 and February 28, 2015 were as follows: Three Months Ended Six Months Ended February 29, February 28, February 29, February 28, Inside the U.S.A. to unaffiliated customers $ 2,344,406 $ 1,544,964 $ 4,006,037 $ 3,071,894 Outside the U.S.A to: Joint ventures in which the Company is a shareholder directly and indirectly 971,501 1,198,892 1,521,047 2,007,879 Unaffiliated customers 4,389,027 3,984,853 9,202,287 8,863,031 $ 7,704,934 $ 6,728,709 $ 14,729,371 $ 13,942,804 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 and six months ended February 29, 2016 and February 28, 2015 were as follows: Three Months Ended February 29, 2016 % of Total Fees February 28, 2015 % of Total Fees Germany $ 192,869 19.9 % $ 202,633 20.4 % Poland 145,765 15.0 % 116,612 11.7 % Japan 137,476 14.2 % 124,202 12.5 % France 73,112 7.5 % 76,518 7.7 % India 72,077 7.4 % 73,971 7.4 % United Kingdom 64,735 6.7 % 115,000 11.6 % Finland 52,896 5.5 % 52,693 5.3 % Sweden 50,356 5.2 % 72,297 7.3 % Thailand 39,322 4.0 % 156,519 15.7 % Other 142,434 14.6 % 4,415 0.1 % $ 971,042 100.0 % $ 994,860 100.0 % Six Months Ended February 29, 2016 % of Total Fees February 28, 2015 % of Total Fees Germany $ 422,654 17.2 % $ 440,954 14.1 % Poland 285,023 11.6 % 287,836 9.2 % Japan 268,149 10.9 % 284,544 9.1 % Thailand 263,063 10.7 % 297,152 9.5 % United Kingdom 173,646 7.1 % 211,371 6.8 % France 162,785 6.6 % 209,898 6.7 % India 152,527 6.2 % 143,262 4.6 % Sweden 123,317 5.0 % 159,217 5.1 % Czech Republic 121,933 5.0 % 108,649 3.4 % Finland 121,829 5.0 % 146,215 4.7 % China — 0.0 % 516,139 16.5 % Other 361,545 14.7 % 323,293 10.3 % $ 2,456,471 100.0 % $ 3,128,530 100.0 % 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 included. The foregoing segment and geographic information represents only sales and cost of goods sold recognized directly by the Company. The geographical distribution of key financial statement data is as follows: February 29, August 31, Brazil $ 52,764 $ 46,918 India 15,114 16,402 China 136,825 45,220 United States 7,106,123 7,184,623 Total long-lived assets $ 7,310,826 $ 7,293,163 Six Months Ended February 29, February 28, Brazil $ 997,636 $ 1,418,236 India 549,402 416,772 China 1,439,754 20,732 United States 11,742,579 12,087,064 Total net sales $ 14,729,371 $ 13,942,804 Total assets located in Brazil, India and China primarily consist of cash and cash equivalents, customer receivables and inventory. 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. Total assets located in the United States include the Company’s investments in joint ventures.

Note 13 - Commitments and Conti

Note 13 - Commitments and Contingencies	6 Months Ended
	Feb. 29, 2016
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	13. COMMITMENTS AND CONTINGENCIES On August 18, 2015, the Compensation Committee of the Board of Directors of the Company approved the material terms of an annual bonus plan for the Company’s executive officers as well as certain officers and employees for the fiscal year ending August 31, 2016. For fiscal 2016 as in past years, the total amount available under the bonus plan for all plan participants, including executive officers, is dependent upon the Company’s earnings before interest, taxes and other income, as adjusted to take into account amounts to be paid under the bonus plan and certain other adjustments (Adjusted EBITOI). Each plan participant’s percentage of the overall bonus pool is based upon the number of plan participants, the individual’s annual base salary and the individual’s position and level of responsibility within the company. In the case of each of the Company’s executive officer participants, 75% of the amount of their individual bonus payout will be determined based upon the Company’s actual Adjusted EBITOI for fiscal 2016 compared to a pre-established target Adjusted EBITOI for fiscal 2016 and 25% of the payout will be determined based upon such executive officer’s achievement of certain pre-established individual performance objectives. The payment of bonuses under the plan are discretionary and may be paid to executive officer participants in both cash and shares of the Company’s common stock, the exact amount and percentages will be determined by the Company’s Board of Directors, upon recommendation of the Compensation Committee, after the completion of the Company’s consolidated financial statements for fiscal 2016. There was no accrual for management bonuses for the six months ended February 29, 2016 compared to an accrual of $100,000 for management bonuses for the six months ended February 28, 2015. Four joint ventures (consisting of the Company’s joint ventures in Korea, India, Thailand and Tianjin Zerust) accounted for 81.7% of the Company’s trade joint venture receivables at February 29, 2016 and accounted for 67.0% of the Company’s trade joint venture receivables at August 31, 2015. On March 23, 2015, the Company and NTI Asean filed a lawsuit in Tianjin No 1 Intermediate People’s Court against two individuals, Meng Tao and Xu Hui, related to breaches of duties and contractual commitments owed to NTI Asean under certain agreements related to the Company’s former joint venture in China, Tianjin Zerust Anti-Corrosion Technologies Ltd. The lawsuit alleges, among other things, that Mr. Meng Tao and Xu Hui have engaged in self-dealing, usurped business opportunities, and received economic benefits that were required to go to Tianjin Zerust. As of February 29, 2016, the Company is not able to reasonably estimate the amount of any recovery to NTI Asean, if any. On April 21, 2015, the Company and NTI Asean initiated a lawsuit in the District Court for the Second Judicial District, County of Ramsey, State of Minnesota against Cortec Corporation alleging, among other things, that Cortec Corporation aided and abetted breaches of duties and contractual commitments owed to the Company and NTI Asean related to the Company’s joint venture in China, Tianjin Zerust. 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 can 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 amount within the range is a better estimate than any other amount. The Company discloses a contingent liability even if the liability is not probable or the amount is not estimable, or both, if there is a reasonable possibility that material loss may be have been incurred. In the opinion of management, as of February 29, 2016, the amount of liability, if any, with respect to these matters, individually or in the aggregate, will not materially affect the Company’s consolidated results of operations, financial position or cash flows.

Note 14 - Fair Value Measuremen

Note 14 - Fair Value Measurements	6 Months Ended
	Feb. 29, 2016
Notes to Financial Statements
Fair Value, Measurement Inputs, Disclosure [Text Block]	14. 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. 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 29, 2016 Level 1 Level 2 Level 3 Available for sale securities $ 2,733,079 $ 2,733,079 $ — $ — Fair Value Measurements Using Inputs Considered as Fair Value as of August 31, 2015 Level 1 Level 2 Level 3 Available for sale securities $ 2,027,441 $ 2,027,441 $ — $ — There were no transfers between Level 1, Level 2, or Level 3 during the three and six months ended February 29, 2016 and February 28, 2015.

Note 3 - Inventories (Tables)

Note 3 - Inventories (Tables)	6 Months Ended
	Feb. 29, 2016
Notes Tables
Schedule of Inventory, Current [Table Text Block]	February 29, 2016 August 31, 2015 Production materials $ 1,104,151 $ 1,445,014 Finished goods 6,196,002 6,023,427 $ 7,300,153 $ 7,468,441

Note 4 - Property and Equipme22

Note 4 - Property and Equipment, Net (Tables)	6 Months Ended
	Feb. 29, 2016
Notes Tables
Property, Plant and Equipment [Table Text Block]	February 29, 2016 August 31, 2015 Land $ 310,365 $ 310,365 Buildings and improvements 6,439,751 6,180,089 Machinery and equipment 4,161,325 4,090,619 10,911,441 10,581,073 Less accumulated depreciation (3,600,615 ) (3,287,910 ) $ 7,310,826 $ 7,293,163

Note 5 - Patents and Trademar23

Note 5 - Patents and Trademarks, Net (Tables)	6 Months Ended
	Feb. 29, 2016
Notes Tables
Schedule of Finite-Lived Intangible Assets [Table Text Block]	February 29, 2016 August 31, 2015 Patents and trademarks $ 2,468,080 $ 2,440,022 Less accumulated amortization (1,237,320 ) (1,177,803 ) $ 1,230,760 $ 1,262,219

Note 6 - Investments in Joint24

Note 6 - Investments in Joint Ventures (Tables)	6 Months Ended
	Feb. 29, 2016
Notes Tables
Condensed Balance Sheet [Table Text Block]	February 29, 2016 Total EXCOR All Other Current assets $ 44,915,882 $ 20,543,914 $ 24,371,968 Total assets 48,456,556 22,412,469 26,044,087 Current liabilities 12,346,248 3,517,274 8,828,974 Noncurrent liabilities 89,039 — 89,039 Joint ventures’ equity 36,021,269 18,895,195 17,126,074 Northern Technologies International Corporation’s share of joint ventures’ equity 17,952,996 9,447,599 8,505,397 Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings $ 15,892,135 $ 9,416,694 $ 6,475,441 August 31, 2015 Total EXCOR All Other Current assets $ 49,295,116 $ 22,620,323 $ 26,674,793 Total assets 52,853,938 24,606,880 28,247,058 Current liabilities 12,288,383 3,360,142 8,928,241 Noncurrent liabilities 1,215,139 — 1,215,139 Joint ventures’ equity 39,350,417 21,246,738 18,103,679 Northern Technologies International Corporation’s share of joint ventures’ equity 20,544,238 11,571,361 8,972,877 Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings $ 18,483,377 $ 11,540,456 $ 6,942,921
Condensed Income Statement [Table Text Block]	Six Months Ended February 29, 2016 Total EXCOR All Other Net sales $ 42,000,424 $ 15,618,735 $ 26,381,689 Gross profit 18,523,102 8,059,186 10,463,916 Net income 3,872,728 2,960,951 911,777 Northern Technologies International Corporation’s share of equity in income of joint ventures $ 1,936,420 $ 1,480,975 $ 455,445 Six Months Ended February 28, 2015 Total EXCOR Tianjin All Other Net sales $ 52,178,238 $ 18,383,653 $ 3,735,457 $ 30,059,128 Gross profit 25,540,546 9,766,973 1,783,673 13,989,900 Net income 6,152,182 3,924,547 265,648 1,961,987 Northern Technologies International Corporation’s share of equity in income of joint ventures $ 3,081,331 $ 1,962,047 $ 132,824 $ 986,460

Note 9 - Stockholders' Equity (

Note 9 - Stockholders' Equity (Tables)	6 Months Ended
	Feb. 29, 2016
Notes Tables
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]	Options Exercised Exercise Price 18,000 $7.65 2,333 $10.20

Note 10 - Net (Loss) Income P26

Note 10 - Net (Loss) Income Per Common Share (Tables)	6 Months Ended
	Feb. 29, 2016
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Three Months Ended Six Months Ended Numerators: February 29, February 28, February 29, February 28, Net (loss) income attributable to NTIC $ (107,789 ) $ (128,644 ) $ (342,140 ) $ 876,621 Denominators: Basic – weighted shares outstanding 4,537,429 4,522,514 4,536,995 4,516,311 Weighted shares assumed upon exercise of stock options - - - 139,481 Diluted – weighted shares outstanding 4,537,429 4,522,514 4,536,995 4,655,792 Basic (loss) income per share: $ (0.02 ) $ (0.03 ) $ (0.08 ) $ 0.20 Diluted (loss) income per share: $ (0.02 ) $ (0.03 ) $ (0.08 ) $ 0.19

Note 11 - Stock-Based Compens27

Note 11 - Stock-Based Compensation (Tables)	6 Months Ended
	Feb. 29, 2016
Notes Tables
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	Six Months Ended February 29, February 28, Dividend yield 0.00 % 0.00 % Expected volatility 46.0 % 46.6 % Expected life of option 10 years 10 years Average risk-free interest rate 1.63 % 1.63 %

Note 12 - Geographic and Segm28

Note 12 - Geographic and Segment Information (Tables)	6 Months Ended
	Feb. 29, 2016
Fees for Services Provided to Joint Ventures [Member]
Notes Tables
Reconciliation of Revenue from Segments to Consolidated [Table Text Block]	Three Months Ended February 29, 2016 % of Total Fees February 28, 2015 % of Total Fees Germany $ 192,869 19.9 % $ 202,633 20.4 % Poland 145,765 15.0 % 116,612 11.7 % Japan 137,476 14.2 % 124,202 12.5 % France 73,112 7.5 % 76,518 7.7 % India 72,077 7.4 % 73,971 7.4 % United Kingdom 64,735 6.7 % 115,000 11.6 % Finland 52,896 5.5 % 52,693 5.3 % Sweden 50,356 5.2 % 72,297 7.3 % Thailand 39,322 4.0 % 156,519 15.7 % Other 142,434 14.6 % 4,415 0.1 % $ 971,042 100.0 % $ 994,860 100.0 % Six Months Ended February 29, 2016 % of Total Fees February 28, 2015 % of Total Fees Germany $ 422,654 17.2 % $ 440,954 14.1 % Poland 285,023 11.6 % 287,836 9.2 % Japan 268,149 10.9 % 284,544 9.1 % Thailand 263,063 10.7 % 297,152 9.5 % United Kingdom 173,646 7.1 % 211,371 6.8 % France 162,785 6.6 % 209,898 6.7 % India 152,527 6.2 % 143,262 4.6 % Sweden 123,317 5.0 % 159,217 5.1 % Czech Republic 121,933 5.0 % 108,649 3.4 % Finland 121,829 5.0 % 146,215 4.7 % China — 0.0 % 516,139 16.5 % Other 361,545 14.7 % 323,293 10.3 % $ 2,456,471 100.0 % $ 3,128,530 100.0 %
Reconciliation of Revenue from Segments to Consolidated [Table Text Block]	Three Months Ended Six Months Ended February 29, February 28, February 29, February 28, ZERUST® net sales $ 6,385,337 $ 5,783,985 $ 12,363,019 $ 12,022,056 Natur-Tec® net sales 1,319,597 944,724 2,366,352 1,920,748 Total net sales $ 7,704,934 $ 6,728,709 $ 14,729,371 $ 13,942,804
Reconciliation of Cost of Goods Sold from Segments to Consolidated [Table Text Block]	Three Months Ended Six Months Ended February 29, 2016 % of February 28, 2015 % of February % of February % of Direct cost of goods sold ZERUST® $ 3,576,073 56.0 % $ 3,171,103 54.8 % $ 6,940,628 56.1 % $ 6,509,691 54.1 % Natur-Tec® 984,938 74.6 % 719,048 76.1 % 1,819,197 76.9 % 1,501,623 78.2 % Indirect cost of goods sold 707,213 — 767,589 — 1,383,822 — 1,453,037 — Total net cost of goods sold $ 5,268,224 $ 4,657,740 $ 10,143,647 $ 9,464,351
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]	Three Months Ended Six Months Ended February 29, February 28, February 29, February 28, Inside the U.S.A. to unaffiliated customers $ 2,344,406 $ 1,544,964 $ 4,006,037 $ 3,071,894 Outside the U.S.A to: Joint ventures in which the Company is a shareholder directly and indirectly 971,501 1,198,892 1,521,047 2,007,879 Unaffiliated customers 4,389,027 3,984,853 9,202,287 8,863,031 $ 7,704,934 $ 6,728,709 $ 14,729,371 $ 13,942,804
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]	February 29, August 31, Brazil $ 52,764 $ 46,918 India 15,114 16,402 China 136,825 45,220 United States 7,106,123 7,184,623 Total long-lived assets $ 7,310,826 $ 7,293,163
Revenue from External Customers by Geographic Areas [Table Text Block]	Six Months Ended February 29, February 28, Brazil $ 997,636 $ 1,418,236 India 549,402 416,772 China 1,439,754 20,732 United States 11,742,579 12,087,064 Total net sales $ 14,729,371 $ 13,942,804

Note 14 - Fair Value Measurem29

Note 14 - Fair Value Measurements (Tables)	6 Months Ended
	Feb. 29, 2016
Notes Tables
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Table Text Block]	Fair Value Measurements Using Inputs Considered as Fair Value as of February 29, 2016 Level 1 Level 2 Level 3 Available for sale securities $ 2,733,079 $ 2,733,079 $ — $ — Fair Value Measurements Using Inputs Considered as Fair Value as of August 31, 2015 Level 1 Level 2 Level 3 Available for sale securities $ 2,027,441 $ 2,027,441 $ — $ —

Note 3 - Inventories (Details)

Note 3 - Inventories (Details) - USD ($)	Feb. 29, 2016	Aug. 31, 2015
Production materials	$ 1,104,151	$ 1,445,014
Finished goods	6,196,002	6,023,427
Inventories	$ 7,300,153	$ 7,468,441

Note 4 - Components of Property

Note 4 - Components of Property and Equipment, Net (Details) - USD ($)	Feb. 29, 2016	Aug. 31, 2015
Land	$ 310,365	$ 310,365
Buildings and improvements	6,439,751	6,180,089
Machinery and equipment	4,161,325	4,090,619
Gross	10,911,441	10,581,073
Less accumulated depreciation	(3,600,615)	(3,287,910)
Net	$ 7,310,826	$ 7,293,163

Note 5 - Patents and Trademar32

Note 5 - Patents and Trademarks, Net (Details Textual) - Patents and Trademarks [Member]	6 Months Ended
	Feb. 29, 2016USD ($)
Finite-Lived Intangible Assets, Amortization Expense, Year Two	$ 100,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three	100,000
Finite-Lived Intangible Assets, Amortization Expense, Year Four	100,000
Finite-Lived Intangible Assets, Amortization Expense, Year Five	$ 100,000
Finite-Lived Intangible Asset, Useful Life	7 years
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	$ 100,000

Note 5 - Patents and Trademar33

Note 5 - Patents and Trademarks, Net (Details) - USD ($)	Feb. 29, 2016	Aug. 31, 2015
Patents and Trademarks [Member]
Patents and trademarks	$ 2,468,080	$ 2,440,022
Less accumulated amortization	(1,237,320)	(1,177,803)
Patents and trademarkes, net	1,230,760	1,262,219
Patents and trademarkes, net	$ 1,230,760	$ 1,262,219

Note 6 - Investments in Joint34

Note 6 - Investments in Joint Ventures (Details Textual) - USD ($)	6 Months Ended
	Feb. 29, 2016	Feb. 28, 2015
Payments to Acquire Interest in Joint Venture	$ 0	$ 0

Note 6 - Condensed Balance Shee

Note 6 - Condensed Balance Sheet of EXCOR and All Other Joint Ventures (Details) - USD ($)	Feb. 29, 2016	Aug. 31, 2015
EXCOR [Member]
Current assets	$ 20,543,914	$ 22,620,323
Total assets	22,412,469	24,606,880
Current liabilities	$ 3,517,274	$ 3,360,142
Noncurrent liabilities
Joint ventures’ equity	$ 18,895,195	$ 21,246,738
Northern Technologies International Corporation’s share of joint ventures’ equity	9,447,599	11,571,361
Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings	9,416,694	11,540,456
All Other [Member]
Current assets	24,371,968	26,674,793
Total assets	26,044,087	28,247,058
Current liabilities	8,828,974	8,928,241
Noncurrent liabilities	89,039	1,215,139
Joint ventures’ equity	17,126,074	18,103,679
Northern Technologies International Corporation’s share of joint ventures’ equity	8,505,397	8,972,877
Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings	6,475,441	6,942,921
Current assets	44,915,882	49,295,116
Total assets	48,456,556	52,853,938
Current liabilities	12,346,248	12,288,383
Noncurrent liabilities	89,039	1,215,139
Joint ventures’ equity	36,021,269	39,350,417
Northern Technologies International Corporation’s share of joint ventures’ equity	17,952,996	20,544,238
Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings	$ 15,892,135	$ 18,483,377

Note 6 - Condensed Income State

Note 6 - Condensed Income Statement of EXCOR, Tianjin Zerust, and All Other Joint Ventures (Details) - USD ($)	6 Months Ended
	Feb. 29, 2016	Feb. 28, 2015
EXCOR [Member]
Net sales	$ 15,618,735	$ 18,383,653
Gross profit	8,059,186	9,766,973
Net income	2,960,951	3,924,547
Northern Technologies International Corporation’s share of equity in income of joint ventures	1,480,975	1,962,047
All Other [Member]
Net sales	26,381,689	30,059,128
Gross profit	10,463,916	13,989,900
Net income	911,777	1,961,987
Northern Technologies International Corporation’s share of equity in income of joint ventures	455,445	986,460
Tianjin Zerust [Member]
Net sales		3,735,457
Gross profit		1,783,673
Net income		265,648
Northern Technologies International Corporation’s share of equity in income of joint ventures		132,824
Net sales	42,000,424	52,178,238
Gross profit	18,523,102	25,540,546
Net income	3,872,728	6,152,182
Northern Technologies International Corporation’s share of equity in income of joint ventures	$ 1,936,420	$ 3,081,332

Note 7 - China Operations (Deta

Note 7 - China Operations (Details Textual) - USD ($)	6 Months Ended		12 Months Ended
	Feb. 29, 2016	Feb. 28, 2015	Aug. 31, 2016	Aug. 31, 2015
Tianjin Zerust [Member] | Maximum [Member] | Scenario, Forecast [Member]
Other than Temporary Impairment Losses, Investments			$ 1,130,200
Tianjin Zerust [Member]
Other than Temporary Impairment Losses, Investments	$ 0
Cost-method Investments, Aggregate Carrying Amount, Not Evaluated for Impairment	$ 1,130,200
Other than Temporary Impairment Losses, Percentage of Investment	60.00%
Cost Method Investments	$ 1,883,668
Termination of Joint Venture and Formation of NTIC China [Member]
Professional Fees	1,418,392	$ 883,000
Cost Method Investments	$ 1,883,668			$ 1,883,668

Note 8 - Corporate Debt (Detail

Note 8 - Corporate Debt (Details Textual)	6 Months Ended
	Feb. 29, 2016USD ($)	Aug. 31, 2015USD ($)
PNC Bank [Member] | Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate	2.15%
PNC Bank [Member] | Revolving Credit Facility [Member]
Long-term Line of Credit	$ 0	$ 0
Line of Credit Facility, Maximum Borrowing Capacity	$ 3,000,000
Term Loan and Line of Credit, Agreements, Loan Agreements [Member]
Debt Instrument, Covenants, Fixed Charge Coverage Ratio	1.1

Note 9 - Stockholders' Equity39

Note 9 - Stockholders' Equity (Details Textual) - $ / shares	6 Months Ended
	Feb. 29, 2016	Feb. 28, 2015
The 2007 Plan [Member]
Stock Repurchased and Retired During Period, Shares		0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	53,447	45,067
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	$ 14.85	$ 20.10
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	0
Stock Repurchased and Retired During Period, Shares	5,461
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	53,447	45,067

Note 9 - Exercised Stock Option

Note 9 - Exercised Stock Options (Details)	6 Months Ended
	Feb. 29, 2016$ / sharesshares
Exercise 1 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	18,000
Exercise Price (in dollars per share) | $ / shares	$ 7.65
Exercise 2 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	2,333
Exercise Price (in dollars per share) | $ / shares	$ 10.20
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	0

Note 10 - Net (Loss) Income P41

Note 10 - Net (Loss) Income Per Common Share (Details Textual) - shares	3 Months Ended		6 Months Ended
	Feb. 29, 2016	Feb. 28, 2015	Feb. 29, 2016
Employee Stock Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	283,181	263,734	283,181

Note 10 - Reconciliation of the

Note 10 - Reconciliation of the Earnings Per Share Computations (Details) - USD ($)	3 Months Ended		6 Months Ended
	Feb. 29, 2016	Feb. 28, 2015	Feb. 29, 2016	Feb. 28, 2015
Net (loss) income attributable to NTIC	$ (107,789)	$ (128,644)	$ (342,140)	$ 879,621
Basic – weighted shares outstanding (in shares)	4,537,429	4,522,514	4,536,995	4,516,311
Weighted shares assumed upon exercise of stock options (in shares)				139,481
Diluted – weighted shares outstanding (in shares)	4,537,429	4,522,514	4,536,995	4,655,792
Basic (loss) income per share: (in dollars per share)	$ (0.02)	$ (0.03)	$ (0.08)	$ 0.20
Diluted (loss) income per share: (in dollars per share)	$ (0.02)	$ (0.03)	$ (0.08)	$ 0.19

Note 11 - Stock-Based Compens43

Note 11 - Stock-Based Compensation (Details Textual) - USD ($)	Sep. 02, 2015	Sep. 02, 2014	Feb. 29, 2016	Feb. 28, 2015
The 2007 Plan [Member] | Minimum [Member] | One Year after Date of Grant [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			3 years
The 2007 Plan [Member] | Maximum [Member] | One Year after Date of Grant [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			4 years
The 2007 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized			800,000
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period			10 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross			53,447	45,067
ESPP [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized			100,000
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent			90.00%
Employee Stock Option [Member]
Stock or Unit Option Plan Expense			$ 223,715	$ 261,159
Net of Estimated Forfeitures [Member]
Allocated Share-based Compensation Expense, Estimate Remainder of Fiscal Year			$ 443,123
Number of Stock-based Compensation Plans			2
Stock Issued During Period, Shares, Employee Stock Purchase Plans	2,439	1,948
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross			53,447	45,067
Allocated Share-based Compensation Expense, Estimate Remainder of Fiscal Year			$ 203,723
Allocated Share-based Compensation Expense, Estimate, Next Fiscal Year			159,600
Allocated Share-based Compensation Expense, Estimate, Fiscal Year Two			$ 79,800
Estimated Forfeiture Rate for Stock Options			10.00%
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value			$ 8.48	$ 11.58
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term			6 years 350 days

Note 11 - Black-Scholes Option-

Note 11 - Black-Scholes Option-pricing Model Assumptions (Details)	6 Months Ended
	Feb. 29, 2016	Feb. 28, 2015
Dividend yield	0.00%	0.00%
Expected volatility	46.00%	46.60%
Expected life of option	10 years	10 years
Average risk-free interest rate	1.63%	1.63%

Note 12 - Geographic and Segm45

Note 12 - Geographic and Segment Information (Details Textual)	6 Months Ended
	Feb. 29, 2016
Number of Reportable Segments	2

Note 12 - Net Sales by Segment

Note 12 - Net Sales by Segment (Details) - USD ($)	3 Months Ended		6 Months Ended
	Feb. 29, 2016	Feb. 28, 2015	Feb. 29, 2016	Feb. 28, 2015
ZERUST [Member]
Net sales by segment	$ 6,385,337	$ 5,783,985	$ 12,363,019	$ 12,022,056
NaturTec [Member]
Net sales by segment	1,319,597	944,724	2,366,352	1,920,748
Net sales by segment	$ 7,704,934	$ 6,728,709	$ 14,729,371	$ 13,942,804

Note 12 - Cost of Goods Sold by

Note 12 - Cost of Goods Sold by Segment (Details) - USD ($)		3 Months Ended		6 Months Ended
		Feb. 29, 2016	Feb. 28, 2015	Feb. 29, 2016		Feb. 28, 2015
Direct Cost of Goods Sold [Member] | ZERUST [Member]
Cost of goods sold		$ 3,576,073	$ 3,171,103	$ 6,940,628	[1]	$ 6,509,691	[1]
Percentage of product sales	[1]	56.00%	54.80%	56.10%		54.10%
Direct Cost of Goods Sold [Member] | NaturTec [Member]
Cost of goods sold		$ 984,938	$ 719,048	$ 1,819,197	[1]	$ 1,501,623	[1]
Percentage of product sales	[1]	74.60%	76.10%	76.90%		78.20%
Indirect Cost of Goods Sold [Member]
Cost of goods sold		$ 707,213	$ 767,589	$ 1,383,822	[1]	$ 1,453,037	[1]
Percentage of product sales	[1]
Cost of goods sold		$ 5,268,224	$ 4,657,740	$ 10,143,647	[1]	$ 9,464,351	[1]
Percentage of product sales	[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 12 - Net Sales by Geograph

Note 12 - Net Sales by Geographic Location (Details) - USD ($)	3 Months Ended		6 Months Ended
	Feb. 29, 2016	Feb. 28, 2015	Feb. 29, 2016	Feb. 28, 2015
Inside the USA to Unaffiliated Customers [Member]
Net sales by segment	$ 2,344,406	$ 1,544,964	$ 4,006,037	$ 3,071,894
Joint Ventures in Which the Company is a Shareholder Directly and Indirectly Outside the USA [Member]
Net sales by segment	971,501	1,198,892	1,521,047	2,007,879
Unaffiliated Customers Outside the USA [Member]
Net sales by segment	4,389,027	3,984,853	9,202,287	8,863,031
Net sales by segment	$ 7,704,934	$ 6,728,709	$ 14,729,371	$ 13,942,804

Note 12 - Fees for Services Pro

Note 12 - Fees for Services Provided to Joint Ventures by Geographic Location as a Percentage of Total Fees for Services Provided to Joint Ventures (Details) - USD ($)	3 Months Ended		6 Months Ended
	Feb. 29, 2016	Feb. 28, 2015	Feb. 29, 2016	Feb. 28, 2015
GERMANY
Fees	$ 192,869	$ 202,633	$ 422,654	$ 440,954
Percentage of total fees	19.90%	20.40%	17.20%	14.10%
POLAND
Fees	$ 145,765	$ 116,612	$ 285,023	$ 287,836
Percentage of total fees	15.00%	11.70%	11.60%	9.20%
JAPAN
Fees	$ 137,476	$ 124,202	$ 268,149	$ 284,544
Percentage of total fees	14.20%	12.50%	10.90%	9.10%
FRANCE
Fees	$ 73,112	$ 76,518	$ 162,785	$ 209,898
Percentage of total fees	7.50%	7.70%	6.60%	6.70%
THAILAND
Fees	$ 39,322	$ 156,519	$ 263,063	$ 297,152
Percentage of total fees	4.00%	15.70%	10.70%	9.50%
INDIA
Fees	$ 72,077	$ 73,971	$ 152,527	$ 143,262
Percentage of total fees	7.40%	7.40%	6.20%	4.60%
UNITED KINGDOM
Fees	$ 64,735	$ 115,000	$ 173,646	$ 211,371
Percentage of total fees	6.70%	11.60%	7.10%	6.80%
FINLAND
Fees	$ 52,896	$ 52,693	$ 121,829	$ 146,215
Percentage of total fees	5.50%	5.30%	5.00%	4.70%
SWEDEN
Fees	$ 50,356	$ 72,297	$ 123,317	$ 159,217
Percentage of total fees	5.20%	7.30%	5.00%	5.10%
CZECH REPUBLIC
Fees			$ 121,933	$ 108,649
Percentage of total fees			5.00%	3.40%
Other Countries [Member]
Fees	$ 142,434	$ 4,415	$ 361,545	$ 323,293
Percentage of total fees	14.60%	0.10%	14.70%	10.30%
CHINA
Fees				$ 516,139
Percentage of total fees			0.00%	16.50%
Fees	$ 971,042	$ 994,860	$ 2,456,471	$ 3,128,530
Percentage of total fees	100.00%	100.00%	100.00%	100.00%

Note 12 - Total Long-Lived Asse

Note 12 - Total Long-Lived Assets by Geographic Distribution (Details) - USD ($)	Feb. 29, 2016	Aug. 31, 2015
BRAZIL
Total long-lived assets	$ 52,764	$ 46,918
INDIA
Total long-lived assets	15,114	16,402
CHINA
Total long-lived assets	136,825	45,220
UNITED STATES
Total long-lived assets	7,106,123	7,184,623
Total long-lived assets	$ 7,310,826	$ 7,293,163

Note 12 - Total Net Sales by Ge

Note 12 - Total Net Sales by Geographic Distribution (Details) - USD ($)	6 Months Ended
	Feb. 29, 2016	Feb. 28, 2015
BRAZIL
Net sales by segment	$ 997,636	$ 1,418,236
INDIA
Net sales by segment	549,402	416,772
CHINA
Net sales by segment	1,439,754	20,732
UNITED STATES
Net sales by segment	11,742,579	12,087,064
Net sales by segment	$ 14,729,371	$ 13,942,804

Note 13 - Commitments and Con52

Note 13 - Commitments and Contingencies (Details Textual)	6 Months Ended
	Feb. 29, 2016USD ($)	Aug. 31, 2015	Feb. 28, 2015USD ($)
Fiscal 2016 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%
Accrued Bonuses	$ 0		$ 100,000
Number of Joint Ventures Accounted For Certain Percentage of Company's Trade Joint Venture Receivables	4
Entity Wide Trade Joint Venture Receivables, Four Joint Ventures,Percentage	81.70%	67.00%

Note 14 - Assets and Liabilitie

Note 14 - Assets and Liabilities Measured at Fair Value Recurring Basis (Details) - USD ($)	Feb. 29, 2016	Aug. 31, 2015
Fair Value, Inputs, Level 1 [Member]
Available for sale securities	$ 2,733,079	$ 2,027,441
Available for sale securities	$ 2,733,079	$ 2,027,441