Northern Technologies International (NTIC) 10-Q 11 Jul 14 2014 Q3 Quarterly report Financial data

Document_And_Entity_Informatio

Document And Entity Information	9 Months Ended
	31-May-14	Jul. 11, 2014
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'Northern Technologies International Corporation	'
Document Type	'10-Q	'
Current Fiscal Year End Date	'--08-31	'
Entity Common Stock, Shares Outstanding	'	4,480,902
Amendment Flag	'false	'
Entity Central Index Key	'0000875582	'
Entity Current Reporting Status	'Yes	'
Entity Voluntary Filers	'No	'
Entity Filer Category	'Smaller Reporting Company	'
Entity Well-known Seasoned Issuer	'No	'
Document Period End Date	31-May-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'

Consolidated_Balance_Sheets_Cu

Consolidated Balance Sheets (Current Period Unaudited) (USD $)	31-May-14	Aug. 31, 2013
CURRENT ASSETS:	'	'
Cash and cash equivalents	$8,549,789	$4,314,258
Receivables:	'	'
Trade excluding joint ventures, less allowance for doubtful accounts of $40,000 at May 31, 2014 and $20,000 at August 31, 2013	3,265,913	3,329,995
Trade joint ventures	768,574	859,434
Fees for services provided to joint ventures	2,833,373	2,446,017
Income taxes	307,991	144,939
Inventories	5,535,014	5,111,549
Prepaid expenses	551,930	258,765
Deferred income taxes	467,548	467,548
Total current assets	22,280,132	16,932,505
PROPERTY AND EQUIPMENT, NET	5,422,925	5,323,612
OTHER ASSETS:	'	'
Investments in joint ventures	22,103,275	24,702,981
Deferred income taxes	1,034,212	1,034,212
Patents and trademarks, net	1,184,824	1,060,639
Other	163,499	'
Total other assets	24,485,810	26,797,832
Total assets	52,188,867	49,053,949
CURRENT LIABILITIES:	'	'
Current portion of note payable (Note 6)	'	76,119
Accounts payable	1,630,733	1,830,729
Accrued liabilities:	'	'
Payroll and related benefits	1,592,640	1,277,942
Deferred joint venture royalties	288,000	288,000
Other	298,490	189,263
Total current liabilities	3,809,863	3,662,053
NOTE PAYABLE, NET OF CURRENT PORTION (Note 6)	'	857,295
COMMITMENTS AND CONTINGENCIES (Note 12)	'	'
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 4,477,902 and 4,432,036, respectively	89,558	88,641
Additional paid-in capital	12,394,854	11,701,942
Retained earnings	31,490,773	28,626,928
Accumulated other comprehensive income	812,834	316,161
Stockholders’ equity	44,788,019	40,733,672
Non-controlling interest	3,590,985	3,800,929
Total equity	48,379,004	44,534,601
Total liabilities and equity	$52,188,867	$49,053,949

Consolidated_Balance_Sheets_Cu1

Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) (USD $)	31-May-14	Aug. 31, 2013
Trade allowance (in Dollars)	$40,000	$20,000
Preferred stock, par value (in Dollars per share)	$0	$0
Preferred stock, shares authorized	10,000	10,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock par value (in Dollars per share)	$0.02	$0.02
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares issued	4,477,902	4,432,036
Common stock, shares outstanding	4,477,902	4,432,036

Consolidated_Statements_of_Ope

Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended		9 Months Ended
	31-May-14	31-May-13	31-May-14	31-May-13
NET SALES:	'	'	'	'
Net sales, excluding joint ventures	$6,056,078	$5,041,096	$17,188,462	$14,296,686
Net sales, to joint ventures	864,742	835,937	2,260,466	2,118,444
Total net sales	6,920,820	5,877,033	19,448,928	16,415,130
Cost of goods sold	4,669,322	4,054,364	12,879,186	11,379,249
Gross profit	2,251,498	1,822,669	6,569,742	5,035,881
JOINT VENTURE OPERATIONS:	'	'	'	'
Equity in income of joint ventures	1,593,465	1,440,335	4,416,664	3,733,069
Fees for services provided to joint ventures	2,001,775	1,917,947	6,169,094	5,535,105
Total joint venture operations	3,595,240	3,358,282	10,585,758	9,268,174
OPERATING EXPENSES:	'	'	'	'
Selling expenses	1,315,264	1,243,687	3,925,466	3,588,847
General and administrative expenses	1,307,653	1,105,710	3,905,082	3,498,393
Expenses incurred in support of joint ventures	353,958	335,132	1,049,691	1,026,275
Research and development expenses	1,104,632	1,002,651	3,342,497	2,853,250
Total operating expenses	4,081,507	3,687,180	12,222,736	10,966,765
OPERATING INCOME	1,765,231	1,493,771	4,932,764	3,337,290
INTEREST INCOME	1,369	2,984	5,728	50,618
INTEREST EXPENSE	-7,063	-50,986	-32,709	-64,448
INCOME BEFORE INCOME TAX EXPENSE	1,759,537	1,445,769	4,905,783	3,323,460
INCOME TAX EXPENSE	361,280	158,000	819,039	532,000
NET INCOME	1,398,257	1,287,769	4,086,744	2,791,460
NET INCOME ATTRIBUTABLE TO NON-CONTROLLING INTEREST	418,040	360,657	1,222,897	1,040,316
NET INCOME ATTRIBUTABLE TO NTIC	$980,217	$927,112	$2,863,847	$1,751,144
NET INCOME ATTRIBUTABLE TO NTIC PER COMMON SHARE:	'	'	'	'
Basic (in Dollars per share)	$0.22	$0.21	$0.64	$0.40
Diluted (in Dollars per share)	$0.21	$0.21	$0.63	$0.39
WEIGHTED AVERAGE COMMON SHARES ASSUMED OUTSTANDING:	'	'	'	'
Basic (in Shares)	4,461,880	4,421,379	4,452,798	4,415,452
Diluted (in Shares)	4,590,344	4,468,861	4,583,174	4,464,774

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (Unaudited) (USD $)	3 Months Ended		9 Months Ended
	31-May-14	31-May-13	31-May-14	31-May-13
NET INCOME	$1,398,257	$1,287,769	$4,086,744	$2,791,460
OTHER COMPREHENSIVE (LOSS) INCOME – FOREIGN CURRENCY TRANSLATION ADJUSTMENT	-133,296	-292,001	472,315	103,543
COMPREHENSIVE INCOME	1,264,961	995,768	4,559,059	2,895,003
COMPREHENSIVE INCOME ATTRIBUTABLE TO NON-CONTROLLING INTERESTS	405,333	352,519	1,198,539	1,087,206
COMPREHENSIVE INCOME ATTRIBUTABLE TO NTIC	$859,628	$643,249	$3,360,520	$1,807,797

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (Unaudited) (USD $)	9 Months Ended
	31-May-14	31-May-13
CASH FLOWS FROM OPERATING ACTIVITIES:	'	'
Net income	$4,086,744	$2,791,460
Adjustments to reconcile net income to net cash used in operating activities:	'	'
Stock-based compensation	345,319	213,347
Depreciation expense	335,350	316,118
Amortization expense	64,736	53,264
Loss on disposal of assets	2,176	13,842
Equity in income from joint ventures	-4,416,664	-3,733,069
Increase in allowance on doubtful accounts	20,000	'
Receivables:	'	'
Trade, excluding joint ventures	80,459	-306,554
Trade, joint ventures	90,860	-385,542
Fees for services provided to joint ventures	-387,356	199,532
Income taxes	-155,319	-116,816
Inventories	-397,090	-1,085,743
Prepaid expenses and other	-455,900	195,848
Accounts payable	-227,486	-526,505
Income tax payable	-4,081	2,783
Accrued liabilities	411,211	-684,857
Net cash used in operating activities	-607,041	-3,052,892
CASH FLOWS FROM INVESTING ACTIVITIES:	'	'
Proceeds from the sale of investment in joint venture	134,606	'
Dividends received from joint ventures	7,307,895	3,017,586
Additions to property and equipment	-428,536	-1,160,344
Effect of subsidiary consolidation on cash	'	1,612,768
Additions to patents	-189,393	-167,652
Net cash provided by investing activities	6,824,572	3,302,358
CASH FLOWS FROM FINANCING ACTIVITIES:	'	'
Repayment of note payable	-933,414	-57,089
Dividend received by non-controlling interest	-1,440,000	-1,352,841
Investment by non-controlling interest	34,770	'
Proceeds from employee stock purchase plan	42,514	56,739
Proceeds from exercise of stock options	305,996	157,021
Net cash used in financing activities	-1,990,134	-1,196,170
EFFECT OF EXCHANGE RATE CHANGES ON CASH:	8,134	-14,686
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	4,235,531	-961,390
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	4,314,258	4,137,547
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$8,549,789	$3,176,157

Note_1_Interim_Financial_Infor

Note 1 - Interim Financial Information	9 Months Ended
	31-May-14
Disclosure Text Block [Abstract]	'
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 May 31, 2014 and August 31, 2013 and the results of their operations for the three and nine months ended May 31, 2014 and 2013 and their cash flows for the nine months ended May 31, 2014 and 2013, in conformity with accounting principles generally accepted in the United States of America (U.S. GAAP).
	Certain amounts reported in the consolidated financial statements for the previous reporting periods have been reclassified to conform to the current period presentation.  These reclassifications did not have a material impact on the Company’s previously reported consolidated balance sheets or statements of cash flows.
	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, 2013.  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 nine months ended May 31, 2014 are not necessarily indicative of the results that may be expected for the full fiscal year ending August 31, 2014.
	The Company evaluates events occurring after the date of the consolidated financial statements requiring recording or disclosure in the consolidated financial statements.

Note_2_Inventories

Note 2 - Inventories	9 Months Ended
	31-May-14
Inventory Disclosure [Abstract]	'
Inventory Disclosure [Text Block]	'
	2.           INVENTORIES
	Inventories consisted of the following:
		31-May-14		31-Aug-13
	Production materials	$	1,323,073	$	1,096,693
	Finished goods		4,211,941		4,014,856
		$	5,535,014	$	5,111,549

Note_3_Property_and_Equipment_

Note 3 - Property and Equipment, Net	9 Months Ended
	31-May-14
Property, Plant and Equipment [Abstract]	'
Property, Plant and Equipment Disclosure [Text Block]	'
	3.           PROPERTY AND EQUIPMENT, NET
	Property and equipment, net consisted of the following:
		31-May-14			31-Aug-13
	Land	$	310,365		$	310,365
	Buildings and improvements		4,582,259			4,613,879
	Machinery and equipment		3,652,730			3,189,671
			8,545,354			8,113,915
	Less accumulated depreciation		(3,122,429	)		(2,790,303	)
		$	5,422,925		$	5,323,612

Note_4_Patents_and_Trademarks_

Note 4 - Patents and Trademarks, Net	9 Months Ended
	31-May-14
Disclosure Text Block [Abstract]	'
Intangible Assets Disclosure [Text Block]	'
	4.           PATENTS AND TRADEMARKS, NET
	Patents and trademarks, net consisted of the following:
		31-May-14			31-Aug-13
	Patents and trademarks	$	2,253,049		$	2,064,128
	Less accumulated amortization		(1,068,225	)		(1,003,489	)
		$	1,184,824		$	1,060,639
	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 $80,000 in each of the next five fiscal years.

Note_5_Investments_in_Joint_Ve

Note 5 - Investments in Joint Ventures	9 Months Ended
	31-May-14
Equity Method Investments and Joint Ventures [Abstract]	'
Equity Method Investments and Joint Ventures Disclosure [Text Block]	'
	5.           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 approximate U.S. GAAP in all material respects.  All material profits recorded on sales from the Company to its joint ventures of goods that remain in inventory, 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), joint venture in China, NTI Asean and all of the Company’s other joint ventures, are summarized as follows:
		At May 31, 2014
		Total		EXCOR		China		All Other
	Current assets	$	58,975,346	$	22,560,299	$	8,541,897	$	27,873,150
	Total assets		63,172,232		24,920,587		8,561,641		29,690,004
	Current liabilities		14,208,070		1,956,574		1,926,986		10,324,510
	Noncurrent liabilities		3,373,373		1,321,199		853,839		1,198,335
	Joint ventures’ equity		45,590,789		21,642,814		5,780,816		18,167,159
	Company’s share of joint ventures’ equity		22,103,275		10,821,409		2,225,409		9,056,460
	Company’s share of joint ventures’ undistributed earnings	$	19,681,808	$	10,790,504	$	2,175,409	$	6,715,895
		At August 31, 2013
		Total		EXCOR		China		All Other
	Current assets	$	63,052,410	$	25,955,136	$	11,200,355	$	25,896,919
	Total assets		68,417,142		28,391,787		11,226,755		28,798,600
	Current liabilities		16,107,597		3,572,004		3,080,118		9,455,475
	Noncurrent liabilities		2,488,057		—		871,886		1,616,171
	Joint ventures’ equity		49,821,488		24,819,783		7,274,751		17,726,954
	Company’s share of joint ventures’ equity		24,702,981		12,409,893		3,637,375		8,655,713
	Company’s share of joint ventures’ undistributed earnings	$	22,281,510	$	12,378,988	$	3,587,375	$	6,315,147
		Nine Months Ended May 31, 2014
		Total		EXCOR		China		All Other
	Net sales	$	88,213,101	$	29,020,416	$	11,952,115	$	47,240,570
	Gross profit		41,609,619		15,000,023		5,550,166		21,059,430
	Net income		9,960,639		5,574,387		1,543,155		1,913,097
	Company’s share of equity in income of joint ventures	$	4,416,664	$	2,787,048	$	659,684	$	969,932
		Nine Months Ended May 31, 2013
		Total		EXCOR		China		All Other
	Net sales	$	82,788,711	$	26,043,775	$	10,802,206	$	45,942,730
	Gross profit		39,447,084		13,624,792		5,134,820		20,687,472
	Net income		7,626,711		4,954,595		815,664		1,856,452
	Company’s share of equity in income of joint ventures	$	3,733,069	$	2,478,109	$	407,809	$	847,151
	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.
	On May 31, 2014, NTI Asean bought out the other 50% owner in its joint venture in Singapore for $110,988, thereby increasing NTI Asean’s ownership in the joint venture from 50% to 100%.  The Company did not make any other joint venture investments during the nine months ended May 31, 2014 and did not make any joint venture investments during the nine months ended May 31, 2013.
	On November 30, 2013, the Company agreed to sell its indirect ownership interest in Mütec GmbH (Mütec), one of the Company’s joint ventures in Germany which manufactures proprietary electronic sensing instruments.  As of May 31, 2014, $163,499 is due to the Company related to this transaction.

Note_6_Corporate_Debt

Note 6 - Corporate Debt	9 Months Ended
	31-May-14
Debt Disclosure [Abstract]	'
Debt Disclosure [Text Block]	'
	6.           CORPORATE DEBT
	As of August 31, 2013, Northern Technologies Holding Company, LLC (NTI LLC) had a term loan with a principal amount of $933,413 outstanding that NTI LLC obtained from PNC Bank, National Association (PNC Bank) in connection with the purchase of NTIC’s corporate headquarters in September 2006.  This term loan was repaid in full on January 3, 2014 and as a result there was $0 outstanding as of May 31, 2014.
	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 May 31, 2014 and August 31, 2013.  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.  As of May 31, 2014, the Company was in compliance with all debt covenants.
	On December 31, 2013, PNC Bank extended the maturity date of the line of credit from January 8, 2014 to January 7, 2015.  All other terms of the line of credit and the loan agreement and other documents evidencing the line of credit remain the same.

Note_7_Stockholders_Equity

Note 7 - Stockholders' Equity	9 Months Ended
	31-May-14
Stockholders' Equity Note [Abstract]	'
Stockholders' Equity Note Disclosure [Text Block]	'
	7.           STOCKHOLDERS’ EQUITY
	During the nine months ended May 31, 2014, the Company did not purchase or retire any shares of its common stock.  The following stock options to purchase shares of common stock were exercised during the nine months ended May 31, 2014:
	Options Exercised	Exercise Price
	44,000	$7.65
	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 56,373 shares of its common stock to various employees and directors during the nine months ended May 31, 2014.  The weighted average per share exercise price of the stock options is $14.83, which is equal to the fair market value of the Company’s common stock on the date of grant.
	During the nine months ended May 31, 2013, the Company did not purchase or retire any shares of its common stock.  The following stock options to purchase shares of common stock were exercised during the nine months ended May 31, 2013:
	Options Exercised	Exercise Price
	25,140	$ 9.95
	4,000	8.57
	1,734	7.65
	1,500	9.76
	666	7.75
	The Company granted stock options under the 2007 Plan to purchase an aggregate of 118,294 shares of its common stock to various employees and directors during the nine months ended May 31, 2013.  The weighted average per share exercise price of the stock options is $10.25, which is equal to the fair market value of the Company’s common stock on the date of grant.

Note_8_Net_Income_Per_Common_S

Note 8 - Net Income Per Common Share	9 Months Ended
	31-May-14
Earnings Per Share [Abstract]	'
Earnings Per Share [Text Block]	'
	8.           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.
	No options to purchase shares of common stock were excluded from the computation of common share equivalents for the three and nine months ended May 31, 2014, as the exercise prices of such options were less than market price of a share of common stock.  Options to purchase shares of common stock of 40,000 were excluded from the computation of common share equivalents for the three and nine months ended May 31, 2013, as the exercise prices of such options were greater than market price of a share of common stock.
	The following is a reconciliation of the earnings per share computation for the three and nine months ended May 31, 2014 and 2013:
		Three Months Ended				Nine Months Ended
	Numerators:	31-May-14		31-May-13		31-May-14		31-May-13
	Net income attributable to NTIC	$	980,217	$	927,112	$	2,863,847	$	1,751,144
	Denominator:
	Basic – weighted shares outstanding		4,461,880		4,421,379		4,452,798		4,415,452
	Weighted shares assumed upon exercise of stock options		128,464		47,482		130,376		49,322
	Diluted – weighted shares outstanding		4,590,344		4,468,861		4,583,174		4,464,774
	Basic earnings per share:	$	0.22	$	0.21	$	0.64	$	0.4
	Diluted earnings per share:	$	0.21	$	0.21	$	0.63	$	0.39
	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.  Earnings per common share were based on the weighted average number of common shares outstanding during the periods when computing the basic earnings per share. When dilutive, stock options are included as equivalents using the treasury stock market method when computing the diluted earnings per share.

Note_9_StockBased_Compensation

Note 9 - Stock-Based Compensation	9 Months Ended
	31-May-14
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	'
	9.           STOCK-BASED COMPENSATION
	The Company has two stock-based compensation plans under which stock options and other stock-based awards have been granted, including 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 administers 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 five 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.  To date, only stock options and stock bonuses have 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 granted options to purchase an aggregate of 56,373 and 118,294 shares of its common stock during the nine months ended May 31, 2014 and 2013, 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.  Based on these valuations, the Company recognized compensation expense of $345,319 and $213,374 during the nine months ended May 31, 2014 and 2013, respectively, related to the options that vested during such time period.  As of May 31, 2014, the total compensation cost for non-vested options not yet recognized in the Company’s consolidated statements of operations was $395,280 net of estimated forfeitures.  Additional stock-based compensation expense of $108,696 is expected through the remainder of fiscal year 2014, and expense of $186,598 and $99,986 is expected to be recognized during fiscal 2015 and fiscal 2016, respectively.  Future option grants will impact the compensation expense recognized.
	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:
		Nine Months Ended
		31-May-14			31-May-13
	Dividend yield		0	%		0.00%
	Expected volatility		47.3	%		48.00%
	Expected life of option (years)	10			5	-	10
	Average risk-free interest rate		1.36	%		0.71%
	The weighted average per share fair value of options granted during nine months ended May 31, 2014 and 2013 was $8.57 and $5.53, respectively.  The weighted average remaining contractual life of the options outstanding as of May 31, 2014 and 2013 was 5.44 years and 4.48 years, respectively.

Note_10_Geographic_and_Segment

Note 10 - Geographic and Segment Information	9 Months Ended
	31-May-14
Segment Reporting [Abstract]	'
Segment Reporting Disclosure [Text Block]	'
	10.           GEOGRAPHIC AND SEGMENT INFORMATION
	Net sales by geographic location as a percentage of total consolidated net sales for the three and nine months ended May 31, 2014 and 2013 were as follows:
			Three Months Ended						Nine Months Ended
			31-May-14			31-May-13			31-May-14			31-May-13
	Inside the U.S.A. to unaffiliated customers			69	%		69.8	%		67.4	%		68.9	%
	Outside the U.S.A to:
	Joint ventures in which the Company is a shareholder directly and indirectly			13.6	%		11.1	%		12.4	%		14.9	%
	Unaffiliated customers			17.4	%		19.1	%		20.2	%		16.2	%
				100	%		100	%		100	%		100	%
	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 nine months ended May 31, 2014 and 2013 were as follows:
			Three Months Ended
			May 31,			% of Total Fees			May 31,			% of Total Fees for
			2014			for Services			2013			Services Provided
						Provided to						to Joint Ventures
						Joint Ventures
	China		$	478,979			23.9	%	$	524,724			27.3	%
	Germany			257,215			12.8	%		250,000			13	%
	India			204,777			10.2	%		—			0	%
	Japan			170,079			8.5	%		177,432			9.3	%
	Poland			152,157			7.6	%		113,339			5.9	%
	Thailand			148,113			7.4	%		169,085			8.8	%
	France			139,719			7	%		104,645			5.5	%
	Sweden			130,613			6.5	%		141,000			7.4	%
	United Kingdom			127,697			6.4	%		65,193			3.4	%
	Finland			87,416			4.4	%		85,246			4.4	%
	Czech			71,489			3.6	%		55,322			2.9	%
	Other			33,351			1.7	%		231,961			12.1	%
			$	2,001,775			100	%	$	1,917,947			100	%
			Nine Months Ended
			May 31,			% of Total Fees			May 31,			% of Total Fees for
			2014			for Services			2013			Services Provided
						Provided to						to Joint Ventures
						Joint Ventures
	China		$	1,590,612			25.8	%	$	1,468,622			26.5	%
	Germany			784,326			12.7	%		742,213			13.4	%
	Japan			510,769			8.3	%		548,618			9.9	%
	Poland			469,242			7.6	%		379,650			6.9	%
	Thailand			431,112			7	%		471,074			8.5	%
	France			390,794			6.3	%		381,043			6.9	%
	India			371,635			6	%		—			0	%
	Sweden			332,806			5.4	%		305,619			5.5	%
	United Kingdom			282,329			4.6	%		168,005			3.1	%
	Finland			269,155			4.4	%		245,426			4.4	%
	Czech			229,230			3.7	%		147,741			2.7	%
	Other			507,084			8.2	%		677,094			12.2	%
			$	6,169,094			100	%	$	5,535,105			100	%
	The following table sets forth the Company’s net sales for the three and nine months ended May 31, 2014 and 2013 by segment:
			Three Months Ended						Nine Months Ended
			31-May-14			31-May-13			31-May-14			31-May-13
	ZERUST® sales		$	5,992,095		$	5,418,271		$	17,296,159		$	14,923,966
	Natur-Tec™ sales			928,725			458,762			2,152,769			1,491,164
	Total net sales		$	6,920,820		$	5,877,033		$	19,448,928		$	16,415,130
	The following table sets forth the Company’s cost of goods sold for the three and nine months ended May 31, 2014 and 2013 by segment:
			Three Months Ended												Nine Months Ended
			May 31,			% of			May 31,			% of			May 31,		% of			May 31,		% of
			2014			Product			2013			Product			2014		Product			2013		Product
						Sales*						Sales*					Sales*					Sales*
	Direct cost of goods sold
	ZERUST®		$	3,288,809			54.9	%	$	3,115,980			57.5	%	$	9,336,363		54	%	$	8,383,345		56.2	%
	Natur-Tec®			695,778			74.9	%		367,485			80.1	%		1,635,815		76	%		1,260,305		84.5	%
	Indirect cost of goods sold			684,735			—			570,899			—			1,907,008		—			1,735,599		—
	Total net cost of goods sold		$	4,669,322					$	4,054,364					$	12,879,186				$	11,379,249
*	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.
Sales to the Company’s joint ventures are included in the foregoing geographic and segment information, however, sales by the Company’s joint ventures to other parties are not included.  The foregoing geographic and segment 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:
		As of May 31,			As of
		2014			August 31,
					2013
Brazil		$	1,080,330		$	1,193,373
India			358,423			—
North America			50,750,114			47,860,576
Total assets		$	52,188,867		$	49,053,949
		Three Months Ended						Nine Months Ended
		31-May-14			31-May-13			31-May-14			31-May-13
Brazil		$	712,125		$	567,615		$	1,865,137		$	1,699,084
India			192,921			—			361,700			—
North America			6,015,774			5,309,418			17,222,091			14,716,046
Total net sales		$	6,920,820		$	5,877,033		$	19,448,928		$	16,415,130
		Three Months Ended						Nine Months Ended
		31-May-14			31-May-13			31-May-14			31-May-13
Brazil		$	70,464		$	(156,594	)	$	(75,491	)	$	(263,353	)
India			72			—			5,872			—
North America			1,694,695			1,650,365			5,002,383			3,600,643
Total operating income		$	1,765,231		$	1,493,771		$	4,932,764		$	3,337,290
Total assets located in Brazil and India 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.

Note_11_Research_and_Developme

Note 11 - Research and Development	9 Months Ended
	31-May-14
Research and Development [Abstract]	'
Research, Development, and Computer Software Disclosure [Text Block]	'
	11.           RESEARCH AND DEVELOPMENT
	The Company expenses costs related to product research and development as incurred.   The Company incurred $3,342,497 and $2,853,250 of expense during the nine months ended May 31, 2014 and 2013, respectively, in connection with its research and development activities.  These costs are net of reimbursements related to certain research and development contracts.  Such reimbursements totaled $45,788 and $206,046 for the nine months ended May 31, 2014 and 2013, respectively.  The net fees are accounted for in the “Research and Development Expenses” section of the consolidated statements of operations.

Note_12_Commitments_and_Contin

Note 12 - Commitments and Contingencies	9 Months Ended
	31-May-14
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies Disclosure [Text Block]	'
	12.           COMMITMENTS AND CONTINGENCIES
	On August 22, 2013, 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, 2014.  For fiscal 2014 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 EBITOI for fiscal 2013 compared to a pre-established target EBITOI for fiscal 2014 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 NTIC 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 2014.  There was $1,063,000 for management bonuses accrued for nine months ended May 31, 2014 compared to a management bonus accrual of $580,000 for the nine months ended May 31, 2013.
	The Company leases property located at 23205 Mercantile Road, Beachwood, Ohio. Remaining rentals payable under such leases are as follows: fiscal 2014 - $59,500 and thereafter - $0.
	Three joint ventures accounted for 68.5% of the Company’s trade joint venture receivables at May 31, 2014, and two joint ventures accounted for 49.0% of the Company’s trade joint venture receivables at August 31, 2013.
	From time to time, the Company is subject to various claims and legal actions in the ordinary course of its business.  The Company is not currently involved in any legal proceeding in which the Company believes, based on information currently available, that there is a reasonable possibility of a material loss.

Note_13_Fair_Value_Measurement

Note 13 - Fair Value Measurements	9 Months Ended
	31-May-14
Disclosure Text Block [Abstract]	'
Fair Value, Measurement Inputs, Disclosure [Text Block]	'
	13.           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		Level 1		Level 2		Level 3
		31-May-14
	Cash equivalents	$	5,520,000	$	5,520,000	$	—	$	—
				Fair Value Measurements
				Using Inputs Considered as
		Fair Value as of		Level 1		Level 2		Level 3
		31-Aug-13
	Cash equivalents	$	1,020,000	$	1,020,000	$	—	$	—

Note_14_Recently_Issued_Accoun

Note 14 - Recently Issued Accounting Standards	9 Months Ended
	31-May-14
Disclosure Text Block [Abstract]	'
Description of New Accounting Pronouncements Not yet Adopted [Text Block]	'
	14.           RECENTLY ISSUED ACCOUNTING STANDARDS
	In May 2014, the Financial Accounting Standards Board (FASB) issued revised guidance on revenue recognition. The standard provides a single revenue recognition model which is intended to improve comparability over a range of industries, companies and geographical boundaries and will also result in enhanced disclosures. The changes are effective for fiscal years, and interim periods within those years, beginning after December 15, 2016, which means the first quarter of our fiscal year 2018. We are currently reviewing the revised guidance and assessing the potential impact on our consolidated financial statements.
	In April 2014, the FASB issued guidance that changes the criteria for determining which disposals can be presented as discontinued operations and modifies related disclosure requirements. Under the new guidance, a discontinued operation is defined as a component or group of components that is disposed of or is classified as held for sale and represents a strategic shift that has or will have a major effect on an entity’s operations and financial results. The change is effective for fiscal years, and interim reporting periods within those years, beginning on or after December 15, 2014, which means the first quarter of our fiscal year 2016, with early adoption permitted. The guidance applies prospectively to new disposals and new classifications of disposal groups as held for sale after the effective date. This new guidance will not affect our consolidated financial position, results of operations or cash flows.

Note_2_Inventories_Tables

Note 2 - Inventories (Tables)	9 Months Ended
	31-May-14
Inventory Disclosure [Abstract]	'
Schedule of Inventory, Current [Table Text Block]	'
		31-May-14		31-Aug-13
	Production materials	$	1,323,073	$	1,096,693
	Finished goods		4,211,941		4,014,856
		$	5,535,014	$	5,111,549

Note_3_Property_and_Equipment_1

Note 3 - Property and Equipment, Net (Tables)	9 Months Ended
	31-May-14
Property, Plant and Equipment [Abstract]	'
Property, Plant and Equipment [Table Text Block]	'
		31-May-14			31-Aug-13
	Land	$	310,365		$	310,365
	Buildings and improvements		4,582,259			4,613,879
	Machinery and equipment		3,652,730			3,189,671
			8,545,354			8,113,915
	Less accumulated depreciation		(3,122,429	)		(2,790,303	)
		$	5,422,925		$	5,323,612

Note_4_Patents_and_Trademarks_1

Note 4 - Patents and Trademarks, Net (Tables)	9 Months Ended
	31-May-14
Disclosure Text Block [Abstract]	'
Schedule of Finite-Lived Intangible Assets [Table Text Block]	'
		31-May-14			31-Aug-13
	Patents and trademarks	$	2,253,049		$	2,064,128
	Less accumulated amortization		(1,068,225	)		(1,003,489	)
		$	1,184,824		$	1,060,639

Note_5_Investments_in_Joint_Ve1

Note 5 - Investments in Joint Ventures (Tables)	9 Months Ended
	31-May-14
Equity Method Investments and Joint Ventures [Abstract]	'
Condensed Balance Sheet [Table Text Block]	'
		At May 31, 2014
		Total		EXCOR		China		All Other
	Current assets	$	58,975,346	$	22,560,299	$	8,541,897	$	27,873,150
	Total assets		63,172,232		24,920,587		8,561,641		29,690,004
	Current liabilities		14,208,070		1,956,574		1,926,986		10,324,510
	Noncurrent liabilities		3,373,373		1,321,199		853,839		1,198,335
	Joint ventures’ equity		45,590,789		21,642,814		5,780,816		18,167,159
	Company’s share of joint ventures’ equity		22,103,275		10,821,409		2,225,409		9,056,460
	Company’s share of joint ventures’ undistributed earnings	$	19,681,808	$	10,790,504	$	2,175,409	$	6,715,895
		At August 31, 2013
		Total		EXCOR		China		All Other
	Current assets	$	63,052,410	$	25,955,136	$	11,200,355	$	25,896,919
	Total assets		68,417,142		28,391,787		11,226,755		28,798,600
	Current liabilities		16,107,597		3,572,004		3,080,118		9,455,475
	Noncurrent liabilities		2,488,057		—		871,886		1,616,171
	Joint ventures’ equity		49,821,488		24,819,783		7,274,751		17,726,954
	Company’s share of joint ventures’ equity		24,702,981		12,409,893		3,637,375		8,655,713
	Company’s share of joint ventures’ undistributed earnings	$	22,281,510	$	12,378,988	$	3,587,375	$	6,315,147
Condensed Income Statement [Table Text Block]	'
		Nine Months Ended May 31, 2014
		Total		EXCOR		China		All Other
	Net sales	$	88,213,101	$	29,020,416	$	11,952,115	$	47,240,570
	Gross profit		41,609,619		15,000,023		5,550,166		21,059,430
	Net income		9,960,639		5,574,387		1,543,155		1,913,097
	Company’s share of equity in income of joint ventures	$	4,416,664	$	2,787,048	$	659,684	$	969,932
		Nine Months Ended May 31, 2013
		Total		EXCOR		China		All Other
	Net sales	$	82,788,711	$	26,043,775	$	10,802,206	$	45,942,730
	Gross profit		39,447,084		13,624,792		5,134,820		20,687,472
	Net income		7,626,711		4,954,595		815,664		1,856,452
	Company’s share of equity in income of joint ventures	$	3,733,069	$	2,478,109	$	407,809	$	847,151

Note_7_Stockholders_Equity_Tab

Note 7 - Stockholders' Equity (Tables)	9 Months Ended
	31-May-14
Stockholders' Equity Note [Abstract]	'
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]	'
	Options Exercised	Exercise Price
	44,000	$7.65
	Options Exercised	Exercise Price
	25,140	$ 9.95
	4,000	8.57
	1,734	7.65
	1,500	9.76
	666	7.75

Note_8_Net_Income_Per_Common_S1

Note 8 - Net Income Per Common Share (Tables)	9 Months Ended
	31-May-14
Earnings Per Share [Abstract]	'
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	'
		Three Months Ended				Nine Months Ended
	Numerators:	31-May-14		31-May-13		31-May-14		31-May-13
	Net income attributable to NTIC	$	980,217	$	927,112	$	2,863,847	$	1,751,144
	Denominator:
	Basic – weighted shares outstanding		4,461,880		4,421,379		4,452,798		4,415,452
	Weighted shares assumed upon exercise of stock options		128,464		47,482		130,376		49,322
	Diluted – weighted shares outstanding		4,590,344		4,468,861		4,583,174		4,464,774
	Basic earnings per share:	$	0.22	$	0.21	$	0.64	$	0.4
	Diluted earnings per share:	$	0.21	$	0.21	$	0.63	$	0.39

Note_9_StockBased_Compensation1

Note 9 - Stock-Based Compensation (Tables)	9 Months Ended
	31-May-14
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	'
		Nine Months Ended
		31-May-14			31-May-13
	Dividend yield		0	%		0.00%
	Expected volatility		47.3	%		48.00%
	Expected life of option (years)	10			5	-	10
	Average risk-free interest rate		1.36	%		0.71%

Note_10_Geographic_and_Segment1

Note 10 - Geographic and Segment Information (Tables)	9 Months Ended
	31-May-14
Note 10 - Geographic and Segment Information (Tables) [Line Items]	'
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]	'
		Three Months Ended						Nine Months Ended
		31-May-14			31-May-13			31-May-14			31-May-13
	Inside the U.S.A. to unaffiliated customers		69	%		69.8	%		67.4	%		68.9	%
	Outside the U.S.A to:
	Joint ventures in which the Company is a shareholder directly and indirectly		13.6	%		11.1	%		12.4	%		14.9	%
	Unaffiliated customers		17.4	%		19.1	%		20.2	%		16.2	%
			100	%		100	%		100	%		100	%
Reconciliation of Revenue from Segments to Consolidated [Table Text Block]	'
		Three Months Ended						Nine Months Ended
		31-May-14			31-May-13			31-May-14			31-May-13
	ZERUST® sales	$	5,992,095		$	5,418,271		$	17,296,159		$	14,923,966
	Natur-Tec™ sales		928,725			458,762			2,152,769			1,491,164
	Total net sales	$	6,920,820		$	5,877,033		$	19,448,928		$	16,415,130
Reconciliation of Cost of Good Sold from Segments to Consolidated [Table Text Block]	'
		Three Months Ended												Nine Months Ended
		May 31,			% of			May 31,			% of			May 31,		% of			May 31,		% of
		2014			Product			2013			Product			2014		Product			2013		Product
					Sales*						Sales*					Sales*					Sales*
	Direct cost of goods sold
	ZERUST®	$	3,288,809			54.9	%	$	3,115,980			57.5	%	$	9,336,363		54	%	$	8,383,345		56.2	%
	Natur-Tec®		695,778			74.9	%		367,485			80.1	%		1,635,815		76	%		1,260,305		84.5	%
	Indirect cost of goods sold		684,735			—			570,899			—			1,907,008		—			1,735,599		—
	Total net cost of goods sold	$	4,669,322					$	4,054,364					$	12,879,186				$	11,379,249
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]	'
		As of May 31,			As of
		2014			August 31,
					2013
	Brazil	$	1,080,330		$	1,193,373
	India		358,423			—
	North America		50,750,114			47,860,576
	Total assets	$	52,188,867		$	49,053,949
Revenue from External Customers by Geographic Areas [Table Text Block]	'
		Three Months Ended						Nine Months Ended
		31-May-14			31-May-13			31-May-14			31-May-13
	Brazil	$	712,125		$	567,615		$	1,865,137		$	1,699,084
	India		192,921			—			361,700			—
	North America		6,015,774			5,309,418			17,222,091			14,716,046
	Total net sales	$	6,920,820		$	5,877,033		$	19,448,928		$	16,415,130
Schedule of Segment Reporting Information, by Segment [Table Text Block]	'
		Three Months Ended						Nine Months Ended
		31-May-14			31-May-13			31-May-14			31-May-13
	Brazil	$	70,464		$	(156,594	)	$	(75,491	)	$	(263,353	)
	India		72			—			5,872			—
	North America		1,694,695			1,650,365			5,002,383			3,600,643
	Total operating income	$	1,765,231		$	1,493,771		$	4,932,764		$	3,337,290
Fees For Services Provided to Joint Ventures [Member]	'
Note 10 - Geographic and Segment Information (Tables) [Line Items]	'
Reconciliation of Revenue from Segments to Consolidated [Table Text Block]	'
		Three Months Ended
		May 31,			% of Total Fees			May 31,			% of Total Fees for
		2014			for Services			2013			Services Provided
					Provided to						to Joint Ventures
					Joint Ventures
	China	$	478,979			23.9	%	$	524,724			27.3	%
	Germany		257,215			12.8	%		250,000			13	%
	India		204,777			10.2	%		—			0	%
	Japan		170,079			8.5	%		177,432			9.3	%
	Poland		152,157			7.6	%		113,339			5.9	%
	Thailand		148,113			7.4	%		169,085			8.8	%
	France		139,719			7	%		104,645			5.5	%
	Sweden		130,613			6.5	%		141,000			7.4	%
	United Kingdom		127,697			6.4	%		65,193			3.4	%
	Finland		87,416			4.4	%		85,246			4.4	%
	Czech		71,489			3.6	%		55,322			2.9	%
	Other		33,351			1.7	%		231,961			12.1	%
		$	2,001,775			100	%	$	1,917,947			100	%
		Nine Months Ended
		May 31,			% of Total Fees			May 31,			% of Total Fees for
		2014			for Services			2013			Services Provided
					Provided to						to Joint Ventures
					Joint Ventures
	China	$	1,590,612			25.8	%	$	1,468,622			26.5	%
	Germany		784,326			12.7	%		742,213			13.4	%
	Japan		510,769			8.3	%		548,618			9.9	%
	Poland		469,242			7.6	%		379,650			6.9	%
	Thailand		431,112			7	%		471,074			8.5	%
	France		390,794			6.3	%		381,043			6.9	%
	India		371,635			6	%		—			0	%
	Sweden		332,806			5.4	%		305,619			5.5	%
	United Kingdom		282,329			4.6	%		168,005			3.1	%
	Finland		269,155			4.4	%		245,426			4.4	%
	Czech		229,230			3.7	%		147,741			2.7	%
	Other		507,084			8.2	%		677,094			12.2	%
		$	6,169,094			100	%	$	5,535,105			100	%

Note_13_Fair_Value_Measurement1

Note 13 - Fair Value Measurements (Tables)	9 Months Ended
	31-May-14
Disclosure Text Block [Abstract]	'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Table Text Block]	'
				Fair Value Measurements
				Using Inputs Considered as
		Fair Value as of		Level 1		Level 2		Level 3
		31-May-14
	Cash equivalents	$	5,520,000	$	5,520,000	$	—	$	—
				Fair Value Measurements
				Using Inputs Considered as
		Fair Value as of		Level 1		Level 2		Level 3
		31-Aug-13
	Cash equivalents	$	1,020,000	$	1,020,000	$	—	$	—

Note_2_Inventories_Details_Inv

Note 2 - Inventories (Details) - Inventories (USD $)	31-May-14	Aug. 31, 2013
Inventories [Abstract]	'	'
Production materials	$1,323,073	$1,096,693
Finished goods	4,211,941	4,014,856
	$5,535,014	$5,111,549

Note_3_Property_and_Equipment_2

Note 3 - Property and Equipment, Net (Details) - Components of Property and Equipment, Net (USD $)	31-May-14	Aug. 31, 2013
Components of Property and Equipment, Net [Abstract]	'	'
Land	$310,365	$310,365
Buildings and improvements	4,582,259	4,613,879
Machinery and equipment	3,652,730	3,189,671
	8,545,354	8,113,915
Less accumulated depreciation	-3,122,429	-2,790,303
	$5,422,925	$5,323,612

Note_4_Patents_and_Trademarks_2

Note 4 - Patents and Trademarks, Net (Details) (USD $)	31-May-14	Feb. 28, 2014	31-May-14
			Patents and Trademarks [Member]
Note 4 - Patents and Trademarks, Net (Details) [Line Items]	'	'	'
Finite-Lived Intangible Asset, Useful Life	'	'	'7 years
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	$80,000	'	'
Finite-Lived Intangible Assets, Amortization Expense, Year Two	80,000	'	'
Finite-Lived Intangible Assets, Amortization Expense, Year Three	'	80,000	'
Finite-Lived Intangible Assets, Amortization Expense, Year Four	'	80,000	'
Finite-Lived Intangible Assets, Amortization Expense, Year Five	'	$80,000	'

Note_4_Patents_and_Trademarks_3

Note 4 - Patents and Trademarks, Net (Details) - Patents and Trademarks, Net (USD $)	31-May-14	Aug. 31, 2013
Patents and Trademarks, Net [Abstract]	'	'
Patents and trademarks	$2,253,049	$2,064,128
Less accumulated amortization	-1,068,225	-1,003,489
	$1,184,824	$1,060,639

Note_5_Investments_in_Joint_Ve2

Note 5 - Investments in Joint Ventures (Details) (USD $)	1 Months Ended
	31-May-14
Singapore [Member]	'
Note 5 - Investments in Joint Ventures (Details) [Line Items]	'
Equity Method Investment, Ownership Acquired	50.00%
Payments to Acquire Equity Method Investments	$110,988
Equity Method Investment, Ownership Percentage	100.00%
Mutec [Member]	'
Note 5 - Investments in Joint Ventures (Details) [Line Items]	'
Due from Joint Ventures	$163,499

Note_5_Investments_in_Joint_Ve3

Note 5 - Investments in Joint Ventures (Details) - Condensed Balance Sheet of EXCOR and NTI ASEAN, and All Other Joint Ventures (USD $)	31-May-14	Aug. 31, 2013
Condensed Balance Sheet Statements, Captions [Line Items]	'	'
Current assets	$58,975,346	$63,052,410
Total assets	63,172,232	68,417,142
Current liabilities	14,208,070	16,107,597
Noncurrent liabilities	3,373,373	2,488,057
Joint venturesb equity	45,590,789	49,821,488
Companybs share of joint venturesb equity	22,103,275	24,702,981
Companybs share of joint venturesb undistributed earnings	19,681,808	22,281,510
EXCOR [Member]	'	'
Condensed Balance Sheet Statements, Captions [Line Items]	'	'
Current assets	22,560,299	25,955,136
Total assets	24,920,587	28,391,787
Current liabilities	1,956,574	3,572,004
Noncurrent liabilities	1,321,199	'
Joint venturesb equity	21,642,814	24,819,783
Companybs share of joint venturesb equity	10,821,409	12,409,893
Companybs share of joint venturesb undistributed earnings	10,790,504	12,378,988
China [Member]	'	'
Condensed Balance Sheet Statements, Captions [Line Items]	'	'
Current assets	8,541,897	11,200,355
Total assets	8,561,641	11,226,755
Current liabilities	1,926,986	3,080,118
Noncurrent liabilities	853,839	871,886
Joint venturesb equity	5,780,816	7,274,751
Companybs share of joint venturesb equity	2,225,409	3,637,375
Companybs share of joint venturesb undistributed earnings	2,175,409	3,587,375
All Other [Member]	'	'
Condensed Balance Sheet Statements, Captions [Line Items]	'	'
Current assets	27,873,150	25,896,919
Total assets	29,690,004	28,798,600
Current liabilities	10,324,510	9,455,475
Noncurrent liabilities	1,198,335	1,616,171
Joint venturesb equity	18,167,159	17,726,954
Companybs share of joint venturesb equity	9,056,460	8,655,713
Companybs share of joint venturesb undistributed earnings	$6,715,895	$6,315,147

Note_5_Investments_in_Joint_Ve4

Note 5 - Investments in Joint Ventures (Details) - Condensed Income Statement of EXCOR and NTI ASEAN, and All Other Joint Ventures: (USD $)	3 Months Ended		9 Months Ended
	31-May-14	31-May-13	31-May-14	31-May-13
Condensed Income Statements, Captions [Line Items]	'	'	'	'
Net sales	'	'	$88,213,101	$82,788,711
Gross profit	'	'	41,609,619	39,447,084
Net income	'	'	9,960,639	7,626,711
Companybs share of equity in income of joint ventures	1,593,465	1,440,335	4,416,664	3,733,069
EXCOR [Member]	'	'	'	'
Condensed Income Statements, Captions [Line Items]	'	'	'	'
Net sales	'	'	29,020,416	26,043,775
Gross profit	'	'	15,000,023	13,624,792
Net income	'	'	5,574,387	4,954,595
Companybs share of equity in income of joint ventures	'	'	2,787,048	2,478,109
China [Member]	'	'	'	'
Condensed Income Statements, Captions [Line Items]	'	'	'	'
Net sales	'	'	11,952,115	10,802,206
Gross profit	'	'	5,550,166	5,134,820
Net income	'	'	1,543,155	815,664
Companybs share of equity in income of joint ventures	'	'	659,684	407,809
All Other [Member]	'	'	'	'
Condensed Income Statements, Captions [Line Items]	'	'	'	'
Net sales	'	'	47,240,570	45,942,730
Gross profit	'	'	21,059,430	20,687,472
Net income	'	'	1,913,097	1,856,452
Companybs share of equity in income of joint ventures	'	'	$969,932	$847,151

Note_6_Corporate_Debt_Details

Note 6 - Corporate Debt (Details) (USD $)	31-May-14	Aug. 31, 2013	31-May-14	Aug. 31, 2013	31-May-14	31-May-14
			Term Loan [Member]	Term Loan [Member]	Revolving Credit Facility [Member]	Revolving Credit Facility [Member]
					London Interbank Offered Rate (LIBOR) [Member]
Note 6 - Corporate Debt (Details) [Line Items]	'	'	'	'	'	'
Long-term Debt, Gross	'	'	$0	$933,413	'	'
Line of Credit Facility, Maximum Borrowing Capacity	'	'	'	'	'	3,000,000
Long-term Line of Credit	$0	$0	'	'	'	'
Debt Instrument, Basis Spread on Variable Rate	'	'	'	'	2.15%	'

Note_7_Stockholders_Equity_Det

Note 7 - Stockholders' Equity (Details) (USD $)	9 Months Ended
	31-May-14	31-May-13
Note 7 - Stockholders' Equity (Details) [Line Items]	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	56,373	118,294
2007 Plan [Member]	'	'
Note 7 - Stockholders' Equity (Details) [Line Items]	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	56,373	'
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	14.83	10.25
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	'	118,294

Note_7_Stockholders_Equity_Det1

Note 7 - Stockholders' Equity (Details) - Exercised Stock Options (USD $)	9 Months Ended
	31-May-13	31-May-14	31-May-14	31-May-14	31-May-14	31-May-14
	Exercise 1 [Member]	Exercise 2 [Member]	Exercise 3 [Member]	Exercise 4 [Member]	Exercise 5 [Member]	Exercise 6 [Member]
Note 7 - Stockholders' Equity (Details) - Exercised Stock Options [Line Items]	'	'	'	'	'	'
Options Exercised	44,000	25,140	4,000	1,734	1,500	666
Exercise Price	$7.65	$9.95	$8.57	$7.65	$9.76	$7.75

Note_8_Net_Income_Per_Common_S2

Note 8 - Net Income Per Common Share (Details)	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended
	31-May-14	31-May-14	31-May-13	31-May-13
			Equity Option [Member]	Equity Option [Member]
Note 8 - Net Income Per Common Share (Details) [Line Items]	'	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	0	0	40,000	40,000

Note_8_Net_Income_Per_Common_S3

Note 8 - Net Income Per Common Share (Details) - Reconciliation of the Earnings Per Share Computations (USD $)	3 Months Ended		9 Months Ended
	31-May-14	31-May-13	31-May-14	31-May-13
Reconciliation of the Earnings Per Share Computations [Abstract]	'	'	'	'
Net income attributable to NTIC (in Dollars)	$980,217	$927,112	$2,863,847	$1,751,144
Basic b weighted shares outstanding	4,461,880	4,421,379	4,452,798	4,415,452
Weighted shares assumed upon exercise of stock options	128,464	47,482	130,376	49,322
Diluted b weighted shares outstanding	4,590,344	4,468,861	4,583,174	4,464,774
Basic earnings per share: (in Dollars per share)	$0.22	$0.21	$0.64	$0.40
Diluted earnings per share: (in Dollars per share)	$0.21	$0.21	$0.63	$0.39

Note_9_StockBased_Compensation2

Note 9 - Stock-Based Compensation (Details) (USD $)	9 Months Ended
	31-May-14	31-May-13
Note 9 - Stock-Based Compensation (Details) [Line Items]	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	'10 years	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares)	56,373	118,294
Allocated Share-based Compensation Expense, Estimate, Remainder of Fiscal Year	$108,696	'
Allocated Share-based Compensation Expense, Estimate, Next Fiscal Year	186,598	'
Allocated Share-based Compensation Expense, Estimate, Fiscal Year Two	99,986	'
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 (in Dollars per share)	$8.57	$5.53
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	'5 years 160 days	'4 years 175 days
Employee Stock Option [Member]	'	'
Note 9 - Stock-Based Compensation (Details) [Line Items]	'	'
Stock or Unit Option Plan Expense	345,319	213,374
Net of Estimated Forfeitures [Member]	'	'
Note 9 - Stock-Based Compensation (Details) [Line Items]	'	'
Allocated Share-based Compensation Expense, Estimate, Remainder of Fiscal Year	$395,280	'
One Year after Date of Grant [Member] | Minimum [Member] | 2007 Plan [Member]	'	'
Note 9 - Stock-Based Compensation (Details) [Line Items]	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	'3 years	'
One Year after Date of Grant [Member] | Maximum [Member] | 2007 Plan [Member]	'	'
Note 9 - Stock-Based Compensation (Details) [Line Items]	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	'4 years	'
2007 Plan [Member]	'	'
Note 9 - Stock-Based Compensation (Details) [Line Items]	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares)	800,000	'
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	'5 years	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares)	'	118,294
ESPP [Member]	'	'
Note 9 - Stock-Based Compensation (Details) [Line Items]	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares)	100,000	'
Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Offering Date	90.00%	'
Minimum [Member]	'	'
Note 9 - Stock-Based Compensation (Details) [Line Items]	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	'	'5 years
Maximum [Member]	'	'
Note 9 - Stock-Based Compensation (Details) [Line Items]	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	'	'10 years

Note_9_StockBased_Compensation3

Note 9 - Stock-Based Compensation (Details) - Black-Scholes Option-Pricing Model Assumptions	9 Months Ended
	31-May-14	31-May-13
Note 9 - Stock-Based Compensation (Details) - Black-Scholes Option-Pricing Model Assumptions [Line Items]	'	'
Dividend yield	0.00%	0.00%
Expected volatility	47.30%	48.00%
Expected life of option (years)	'10 years	'
Average risk-free interest rate	1.36%	0.71%
Minimum [Member]	'	'
Note 9 - Stock-Based Compensation (Details) - Black-Scholes Option-Pricing Model Assumptions [Line Items]	'	'
Expected life of option (years)	'	'5 years
Maximum [Member]	'	'
Note 9 - Stock-Based Compensation (Details) - Black-Scholes Option-Pricing Model Assumptions [Line Items]	'	'
Expected life of option (years)	'	'10 years

Note_10_Geographic_and_Segment2

Note 10 - Geographic and Segment Information (Details) - Net Sales By Geographic Location as Percentage of Total Consolidated Net Sales (Sales Revenue, Net [Member], Geographic Concentration Risk [Member])	3 Months Ended		9 Months Ended
	31-May-14	31-May-13	31-May-14	31-May-13
Note 10 - Geographic and Segment Information (Details) - Net Sales By Geographic Location as Percentage of Total Consolidated Net Sales [Line Items]	'	'	'	'
Net Sales, Percentage	100.00%	100.00%	100.00%	100.00%
Inside the U.S.A to Unaffiliated Customers [Member]	'	'	'	'
Note 10 - Geographic and Segment Information (Details) - Net Sales By Geographic Location as Percentage of Total Consolidated Net Sales [Line Items]	'	'	'	'
Net Sales, Percentage	69.00%	69.80%	67.40%	68.90%
Joint Ventures In Which The Company Is A Shareholder Directly And Indirectly - Outside the U.S.A [Member]	'	'	'	'
Note 10 - Geographic and Segment Information (Details) - Net Sales By Geographic Location as Percentage of Total Consolidated Net Sales [Line Items]	'	'	'	'
Net Sales, Percentage	13.60%	11.10%	12.40%	14.90%
Unaffiliated Customers - Outside the U.S.A [Member]	'	'	'	'
Note 10 - Geographic and Segment Information (Details) - Net Sales By Geographic Location as Percentage of Total Consolidated Net Sales [Line Items]	'	'	'	'
Net Sales, Percentage	17.40%	19.10%	20.20%	16.20%

Note_10_Geographic_and_Segment3

Note 10 - Geographic and Segment Information (Details) - Fees for Services Provided to Joint Ventures By Geographic Location as a Percentage of Total Fees for Services Provided to Joint Ventures (USD $)	3 Months Ended
	31-May-14	31-May-13
Three Months Ended [Member] | CHINA	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	$478,979	$524,724
Percentage of Total Fees for Services Provided to Joint Ventures	23.90%	27.30%
Three Months Ended [Member] | GERMANY	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	257,215	250,000
Percentage of Total Fees for Services Provided to Joint Ventures	12.80%	13.00%
Three Months Ended [Member] | INDIA	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	204,777	'
Percentage of Total Fees for Services Provided to Joint Ventures	10.20%	0.00%
Three Months Ended [Member] | JAPAN	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	170,079	177,432
Percentage of Total Fees for Services Provided to Joint Ventures	8.50%	9.30%
Three Months Ended [Member] | POLAND	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	152,157	113,339
Percentage of Total Fees for Services Provided to Joint Ventures	7.60%	5.90%
Three Months Ended [Member] | THAILAND	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	148,113	169,085
Percentage of Total Fees for Services Provided to Joint Ventures	7.40%	8.80%
Three Months Ended [Member] | FRANCE	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	139,719	104,645
Percentage of Total Fees for Services Provided to Joint Ventures	7.00%	5.50%
Three Months Ended [Member] | SWEDEN	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	130,613	141,000
Percentage of Total Fees for Services Provided to Joint Ventures	6.50%	7.40%
Three Months Ended [Member] | UNITED KINGDOM	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	127,697	65,193
Percentage of Total Fees for Services Provided to Joint Ventures	6.40%	3.40%
Three Months Ended [Member] | FINLAND	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	87,416	85,246
Percentage of Total Fees for Services Provided to Joint Ventures	4.40%	4.40%
Three Months Ended [Member] | CZECH REPUBLIC	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	71,489	55,322
Percentage of Total Fees for Services Provided to Joint Ventures	3.60%	2.90%
Three Months Ended [Member] | Other Countries [Member]	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	33,351	231,961
Percentage of Total Fees for Services Provided to Joint Ventures	1.70%	12.10%
Three Months Ended [Member]	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	2,001,775	1,917,947
Percentage of Total Fees for Services Provided to Joint Ventures	100.00%	100.00%
Six Months Ended [Member] | CHINA	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	1,590,612	1,468,622
Percentage of Total Fees for Services Provided to Joint Ventures	25.80%	26.50%
Six Months Ended [Member] | GERMANY	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	784,326	742,213
Percentage of Total Fees for Services Provided to Joint Ventures	12.70%	13.40%
Six Months Ended [Member] | INDIA	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	371,635	'
Percentage of Total Fees for Services Provided to Joint Ventures	6.00%	0.00%
Six Months Ended [Member] | JAPAN	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	510,769	548,618
Percentage of Total Fees for Services Provided to Joint Ventures	8.30%	9.90%
Six Months Ended [Member] | POLAND	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	469,242	379,650
Percentage of Total Fees for Services Provided to Joint Ventures	7.60%	6.90%
Six Months Ended [Member] | THAILAND	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	431,112	471,074
Percentage of Total Fees for Services Provided to Joint Ventures	7.00%	8.50%
Six Months Ended [Member] | FRANCE	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	390,794	381,043
Percentage of Total Fees for Services Provided to Joint Ventures	6.30%	6.90%
Six Months Ended [Member] | SWEDEN	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	332,806	305,619
Percentage of Total Fees for Services Provided to Joint Ventures	5.40%	5.50%
Six Months Ended [Member] | UNITED KINGDOM	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	282,329	168,005
Percentage of Total Fees for Services Provided to Joint Ventures	4.60%	3.10%
Six Months Ended [Member] | FINLAND	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	269,155	245,426
Percentage of Total Fees for Services Provided to Joint Ventures	4.40%	4.40%
Six Months Ended [Member] | CZECH REPUBLIC	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	229,230	147,741
Percentage of Total Fees for Services Provided to Joint Ventures	3.70%	2.70%
Six Months Ended [Member] | Other Countries [Member]	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	507,084	677,094
Percentage of Total Fees for Services Provided to Joint Ventures	8.20%	12.20%
Six Months Ended [Member]	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	$6,169,094	$5,535,105
Percentage of Total Fees for Services Provided to Joint Ventures	100.00%	100.00%

Note_10_Geographic_and_Segment4

Note 10 - Geographic and Segment Information (Details) - Net Sales by Segment (USD $)	3 Months Ended		9 Months Ended
	31-May-14	31-May-13	31-May-14	31-May-13
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'	'	'
Net sales by segment	$6,920,820	$5,877,033	$19,448,928	$16,415,130
ZERUST [Member]	'	'	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'	'	'
Net sales by segment	5,992,095	5,418,271	17,296,159	14,923,966
Natur-Tec [Member]	'	'	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'	'	'
Net sales by segment	$928,725	$458,762	$2,152,769	$1,491,164

Note_10_Geographic_and_Segment5

Note 10 - Geographic and Segment Information (Details) - Cost of Goods Sold by Segment (USD $)	3 Months Ended		9 Months Ended
	31-May-14	31-May-13	31-May-14	31-May-13
Note 10 - Geographic and Segment Information (Details) - Cost of Goods Sold by Segment [Line Items]	'	'	'	'
Cost of Goods Sold	$4,669,322	$4,054,364	$12,879,186	$11,379,249
Direct Cost of Goods Sold [Member] | ZERUST [Member]	'	'	'	'
Note 10 - Geographic and Segment Information (Details) - Cost of Goods Sold by Segment [Line Items]	'	'	'	'
Cost of Goods Sold	3,288,809	3,115,980	9,336,363	8,383,345
% of Product Sales	54.90%	57.50%	54.00%	56.20%
Direct Cost of Goods Sold [Member] | Natur-Tec [Member]	'	'	'	'
Note 10 - Geographic and Segment Information (Details) - Cost of Goods Sold by Segment [Line Items]	'	'	'	'
Cost of Goods Sold	695,778	367,485	1,635,815	1,260,305
% of Product Sales	74.90%	80.10%	76.00%	84.50%
Indirect Cost of Goods Sold [Member]	'	'	'	'
Note 10 - Geographic and Segment Information (Details) - Cost of Goods Sold by Segment [Line Items]	'	'	'	'
Cost of Goods Sold	$684,735	$570,899	$1,907,008	$1,735,599

Note_10_Geographic_and_Segment6

Note 10 - Geographic and Segment Information (Details) - Total Assets by Geographic Distribution (USD $)	31-May-14	Aug. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Total assets	$52,188,867	$49,053,949
BRAZIL	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Total assets	1,080,330	1,193,373
INDIA	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Total assets	358,423	'
North America [Member]	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Total assets	$50,750,114	$47,860,576

Note_10_Geographic_and_Segment7

Note 10 - Geographic and Segment Information (Details) - Total Net Sales by Geographic Distribution (USD $)	3 Months Ended		9 Months Ended
	31-May-14	31-May-13	31-May-14	31-May-13
Note 10 - Geographic and Segment Information (Details) - Total Net Sales by Geographic Distribution [Line Items]	'	'	'	'
Total net sales	$6,920,820	$5,877,033	$19,448,928	$16,415,130
BRAZIL	'	'	'	'
Note 10 - Geographic and Segment Information (Details) - Total Net Sales by Geographic Distribution [Line Items]	'	'	'	'
Total net sales	712,125	567,615	1,865,137	1,699,084
INDIA	'	'	'	'
Note 10 - Geographic and Segment Information (Details) - Total Net Sales by Geographic Distribution [Line Items]	'	'	'	'
Total net sales	192,921	'	361,700	'
North America [Member]	'	'	'	'
Note 10 - Geographic and Segment Information (Details) - Total Net Sales by Geographic Distribution [Line Items]	'	'	'	'
Total net sales	$6,015,774	$5,309,418	$17,222,091	$14,716,046

Note_10_Geographic_and_Segment8

Note 10 - Geographic and Segment Information (Details) - Operating Income by Geographic Distribution (USD $)	3 Months Ended		9 Months Ended
	31-May-14	31-May-13	31-May-14	31-May-13
Segment Reporting Information [Line Items]	'	'	'	'
Total operating income	$1,765,231	$1,493,771	$4,932,764	$3,337,290
BRAZIL	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Total operating income	70,464	-156,594	-75,491	-263,353
INDIA	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Total operating income	72	'	5,872	'
North America [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Total operating income	$1,694,695	$1,650,365	$5,002,383	$3,600,643

Note_11_Research_and_Developme1

Note 11 - Research and Development (Details) (USD $)	3 Months Ended		9 Months Ended
	31-May-14	31-May-13	31-May-14	31-May-13
Research and Development [Abstract]	'	'	'	'
Research and Development Expense	$1,104,632	$1,002,651	$3,342,497	$2,853,250
Research and Development Arrangement, Contract to Perform for Others, Costs Incurred, Gross	'	'	$45,788	$206,046

Note_12_Commitments_and_Contin1

Note 12 - Commitments and Contingencies (Details) (USD $)	31-May-14	Feb. 28, 2014	Aug. 31, 2013	31-May-13	31-May-14
					Fiscal 2013 Bonus Plan [Member]
					Executive Officer [Member]
Note 12 - Commitments and Contingencies (Details) [Line Items]	'	'	'	'	'
Percentage of Individual Bonus Payout Determined By Actual Versus Targeted EBITOI Results	'	'	'	'	75.00%
Percentage of Individual's Payout Determined Upon Achievement of Certain Pre-Established Individual Performance Objectives	'	'	'	'	25.00%
Accrued Bonuses	$1,063,000	'	'	$580,000	'
Operating Leases, Future Minimum Payments Due, Next Twelve Months	'	'	'	59,500	'
Operating Leases, Future Minimum Payments, Due Thereafter	'	$0	'	'	'
Entity-Wide Trade Joint Venture Receivables, Three Joint Ventures, Percentage	68.50%	'	'	'	'
EntityWideTradeJointVentureReceivablesTwoJointVenturesPercentage	'	'	49.00%	'	'

Note_13_Fair_Value_Measurement2

Note 13 - Fair Value Measurements (Details) - Assets and Liabilities Measured at Fair Value Recurring Basis (USD $)	31-May-14	31-May-13
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'	'
Cash equivalents	$5,520,000	$1,020,000
Fair Value, Inputs, Level 1 [Member]	'	'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'	'
Cash equivalents	$5,520,000	$1,020,000