Northern Technologies International (NTIC) 10-Q 11 Apr 14 2013 Q2 Quarterly report Financial data

Document_And_Entity_Informatio

Document And Entity Information	6 Months Ended
	Feb. 28, 2014	Apr. 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	'	4,448,837
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	28-Feb-14	'
Document Fiscal Year Focus	'2013	'
Document Fiscal Period Focus	'Q2	'

Consolidated_Balance_Sheets_Cu

Consolidated Balance Sheets (Current Period Unaudited) (USD $)	Feb. 28, 2014	Aug. 31, 2013
CURRENT ASSETS:	'	'
Cash and cash equivalents	$6,996,127	$4,314,258
Receivables:	'	'
Trade excluding joint ventures, less allowance for doubtful accounts of $40,000 at February 28, 2014 and $20,000 at August 31, 2013	3,260,411	3,329,995
Trade joint ventures	536,532	859,434
Fees for services provided to joint ventures	2,816,043	2,446,017
Income taxes	356,947	144,939
Inventories	5,370,201	5,111,549
Prepaid expenses	582,289	258,765
Deferred income taxes	467,548	467,548
Total current assets	20,386,098	16,932,505
PROPERTY AND EQUIPMENT, NET	5,431,316	5,323,612
OTHER ASSETS:	'	'
Investments in joint ventures	22,653,710	24,702,981
Deferred income taxes	1,034,212	1,034,212
Patents and trademarks, net	1,138,698	1,060,639
Other	177,273	'
Total other assets	25,003,893	26,797,832
Total assets	50,821,307	49,053,949
CURRENT LIABILITIES:	'	'
Current portion of note payable (Note 6)	'	76,119
Accounts payable	1,261,616	1,830,729
Accrued liabilities:	'	'
Payroll and related benefits	1,027,069	1,277,942
Deferred joint venture royalties	288,000	288,000
Other	118,510	189,263
Total current liabilities	2,695,195	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 4,434,837 and 4,432,036, respectively	88,697	88,641
Additional paid-in capital	11,967,414	11,701,942
Retained earnings	30,510,558	28,626,928
Accumulated other comprehensive income	933,423	316,161
Stockholders’ equity	43,500,092	40,733,672
Non-controlling interest	4,626,020	3,800,929
Total equity	48,126,112	44,534,601
Total liabilities and equity	$50,821,307	$49,053,949

Consolidated_Balance_Sheets_Cu1

Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) (USD $)	Feb. 28, 2014	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	4,434,837	4,432,036
Common stock, shares outstanding	4,434,837	4,432,036

Consolidated_Statements_of_Ope

Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended		6 Months Ended
	Feb. 28, 2014	Feb. 28, 2013	Feb. 28, 2014	Feb. 28, 2013
NET SALES:	'	'	'	'
Net sales, excluding joint ventures	$5,527,366	$4,485,203	$11,132,384	$9,255,590
Net sales, to joint ventures	691,642	761,147	1,395,724	1,282,507
Total net sales	6,219,008	5,246,350	12,528,108	10,538,097
Cost of goods sold	4,051,833	3,633,913	8,209,864	7,324,885
Gross profit	2,167,175	1,612,437	4,318,244	3,213,212
JOINT VENTURE OPERATIONS:	'	'	'	'
Equity in income of joint ventures	1,395,451	1,138,438	2,823,199	2,292,734
Fees for services provided to joint ventures	2,057,671	1,770,881	4,167,319	3,617,158
Total joint venture operations	3,453,122	2,909,319	6,990,518	5,909,892
OPERATING EXPENSES:	'	'	'	'
Selling expenses	1,291,316	1,174,065	2,610,202	2,345,160
General and administrative expenses	1,209,933	1,143,987	2,597,429	2,392,683
Expenses incurred in support of joint ventures	366,469	321,456	695,733	691,143
Research and development expenses	1,099,345	912,393	2,237,865	1,850,599
Total operating expenses	3,967,063	3,551,901	8,141,229	7,279,585
OPERATING INCOME	1,653,234	969,855	3,167,533	1,843,519
INTEREST INCOME	2,570	22,288	4,359	47,634
INTEREST EXPENSE	-11,976	-6,988	-25,646	-13,462
INCOME BEFORE INCOME TAX EXPENSE	1,643,828	985,155	3,146,246	1,877,691
INCOME TAX EXPENSE	259,759	240,000	457,759	374,000
NET INCOME	1,384,069	745,155	2,688,487	1,503,691
NET INCOME ATTRIBUTABLE TO NON-CONTROLLING INTEREST	359,025	310,745	804,857	679,659
NET INCOME ATTRIBUTABLE TO NTIC	$1,025,044	$434,410	$1,883,630	$824,032
NET INCOME ATTRIBUTABLE TO NTIC PER COMMON SHARE:	'	'	'	'
Basic (in Dollars per share)	$0.23	$0.10	$0.42	$0.19
Diluted (in Dollars per share)	$0.22	$0.10	$0.41	$0.18
WEIGHTED AVERAGE COMMON SHARES ASSUMED OUTSTANDING:	'	'	'	'
Basic (in Shares)	4,434,837	4,418,821	4,434,770	4,409,954
Diluted (in Shares)	4,579,603	4,485,076	4,566,103	4,460,197

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (Unaudited) (USD $)	3 Months Ended		6 Months Ended
	Feb. 28, 2014	Feb. 28, 2013	Feb. 28, 2014	Feb. 28, 2013
NET INCOME	$1,384,069	$745,155	$2,688,487	$1,503,691
OTHER COMPREHENSIVE INCOME – FOREIGN CURRENCY TRANSLATION ADJUSTMENT	84,038	-25,641	605,611	395,544
COMPREHENSIVE INCOME	1,468,107	719,514	3,294,098	1,899,235
COMPREHENSIVE INCOME ATTRIBUTABLE TO NON-CONTROLLING INTERESTS	334,607	331,252	793,206	734,687
COMPREHENSIVE INCOME ATTRIBUTABLE TO NTIC	$1,133,500	$388,262	$2,500,892	$1,164,548

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (Unaudited) (USD $)	6 Months Ended
	Feb. 28, 2014	Feb. 28, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:	'	'
Net income	$2,688,487	$1,503,691
Stock-based compensation	236,623	137,550
Depreciation expense	217,620	211,874
Amortization expense	42,819	35,122
Loss on disposal of assets	2,178	13,845
Equity in income from joint ventures	-2,823,199	-2,292,734
Increase in allowance on doubtful accounts	20,000	'
Receivables:	'	'
Trade, excluding joint ventures	64,392	-223,731
Trade, joint ventures	322,902	-247,466
Fees for services provided to joint ventures	-370,026	221,099
Income taxes	-209,797	-51,111
Inventories	-246,686	-990,720
Prepaid expenses and other	-500,213	-91,869
Accounts payable	-578,103	-574,037
Income tax payable	-835	-2,748
Accrued liabilities	-330,206	-1,094,446
Net cash used in operating activities	-1,464,042	-3,445,681
CASH FLOWS FROM INVESTING ACTIVITIES:	'	'
Proceeds from the sale of investment in joint venture	245,594	'
Dividends received from joint ventures	5,217,878	2,953,435
Additions to property and equipment	-325,051	-102,259
Effect of subsidiary consolidation on cash	'	1,612,768
Additions to patents	-121,351	-114,882
Net cash provided by investing activities	5,017,070	4,349,062
CASH FLOWS FROM FINANCING ACTIVITIES:	'	'
Repayment of note payable	-933,414	-38,059
Dividend received by non-controlling interest	'	-872,841
Investment by non-controlling interest	30,866	'
Proceeds from employee stock purchase plan	21,255	28,938
Proceeds from exercise of stock options	7,650	102,815
Net cash used in financing activities	-873,643	-779,147
EFFECT OF EXCHANGE RATE CHANGES ON CASH:	2,484	-636
NET INCREASE IN CASH AND CASH EQUIVALENTS	2,681,869	123,598
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	4,314,258	4,137,547
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$6,996,127	$4,261,145

Note_1_Interim_Financial_Infor

Note 1 - Interim Financial Information	6 Months Ended
	Feb. 28, 2014
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 February 28, 2014 and August 31, 2013 and the results of their operations for the three and six months ended February 28, 2014 and 2013 and their cash flows for the six months ended February 28, 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 six months ended February 28, 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	6 Months Ended
	Feb. 28, 2014
Inventory Disclosure [Abstract]	'
Inventory Disclosure [Text Block]	'
	2.           INVENTORIES
	Inventories consisted of the following:
		28-Feb-14		31-Aug-13
	Production materials	$	1,191,107	$	1,096,693
	Finished goods		4,179,094		4,014,856
		$	5,370,201	$	5,111,549

Note_3_Property_and_Equipment_

Note 3 - Property and Equipment, Net	6 Months Ended
	Feb. 28, 2014
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:
		28-Feb-14			31-Aug-13
	Land	$	310,365		$	310,365
	Buildings and improvements		4,540,110			4,613,879
	Machinery and equipment		3,590,893			3,189,671
			8,441,369			8,113,915
	Less accumulated depreciation		(3,010,052	)		(2,790,303	)
		$	5,431,316		$	5,323,612

Note_4_Patents_and_Trademarks_

Note 4 - Patents and Trademarks, Net	6 Months Ended
	Feb. 28, 2014
Disclosure Text Block [Abstract]	'
Intangible Assets Disclosure [Text Block]	'
	4.           PATENTS AND TRADEMARKS, NET
	Patents and trademarks, net consisted of the following:
		28-Feb-14			31-Aug-13
	Patents and trademarks	$	2,185,008		$	2,064,128
	Less accumulated amortization		(1,046,310	)		(1,003,489	)
		$	1,138,698		$	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	6 Months Ended
	Feb. 28, 2014
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 February 28, 2014
		Total		EXCOR		China		All Other
	Current assets	$	60,798,447	$	21,138,250	$	12,498,369	$	27,161,828
	Total assets		66,244,262		23,578,234		12,520,341		30,145,687
	Current liabilities		17,443,151		3,486,865		3,860,391		10,095,895
	Noncurrent liabilities		2,126,033		—		868,005		1,258,028
	Joint ventures’ equity		46,675,076		20,091,369		7,791,945		18,791,762
	Company’s share of joint ventures’ equity		22,653,729		10,045,687		3,895,973		8,712,069
	Company’s share of joint ventures’ undistributed earnings	$	20,232,259	$	10,014,782	$	3,845,973	$	6,371,504
		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
		Six Months Ended February 28, 2014
		Total		EXCOR		China		All Other
	Net sales	$	58,050,376	$	18,963,579	$	8,257,630	$	30,829,167
	Gross profit		27,600,668		10,072,948		3,834,419		13,693,301
	Net income		5,479,724		3,763,017		553,963		1,162,744
	Company’s share of equity in income of joint ventures	$	2,823,199	$	1,881,705	$	276,948	$	664,546
		Six Months Ended February 28, 2013
		Total		EXCOR		China		All Other
	Net sales	$	54,247,135	$	17,451,153	$	6,929,260	$	29,866,722
	Gross profit		25,852,537		9,105,579		3,290,660		13,456,298
	Net income		4,728,680		3,260,575		524,546		943,559
	Company’s share of equity in income of joint ventures	$	2,292,734	$	1,631,125	$	262,148	$	399,461
	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.
	The Company did not make any joint venture investments during the six months ended February 28, 2014 and 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 February 28, 2014, $177,273 is due to the Company related to this transaction.

Note_6_Corporate_Debt

Note 6 - Corporate Debt	6 Months Ended
	Feb. 28, 2014
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 February 28, 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 February 28, 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 February 28, 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	6 Months Ended
	Feb. 28, 2014
Stockholders' Equity Note [Abstract]	'
Stockholders' Equity Note Disclosure [Text Block]	'
	7.           STOCKHOLDERS’ EQUITY
	During the six months ended February 28, 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 six months ended February 28, 2014:
		Options Exercised	Exercise Price
		1,000	$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 six months ended February 28, 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 six months ended February 28, 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 six months ended February 28, 2013:
		Options Exercised	Exercise Price
		25,140	$9.95
		1,734	7.65
	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 six months ended February 28, 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	6 Months Ended
	Feb. 28, 2014
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 six months ended February 28, 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 48,000 were excluded from the computation of common share equivalents for the three and six months ended February 28, 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 six months ended February 28, 2014 and 2013:
		Three Months Ended				Six Months Ended
	Numerators:	February 28,		February 28,		February 28,		February 28,
		2014		2013		2014		2013
	Net income attributable to NTIC	$	1,025,044	$	434,410	$	1,883,630	$	824,032
	Denominator:
	Basic – weighted shares outstanding		4,434,837		4,418,821		4,434,770		4,409,954
	Weighted shares assumed upon exercise of stock options		144,766		66,255		131,333		50,243
	Diluted – weighted shares outstanding		4,579,603		4,485,076		4,566,103		4,460,197
	Basic earnings per share:	$	0.23	$	0.1	$	0.42	$	0.19
	Diluted earnings per share:	$	0.22	$	0.1	$	0.41	$	0.18
	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	6 Months Ended
	Feb. 28, 2014
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 six months ended February 28, 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 $236,623 and $137,550 during the six months ended February 28, 2014 and 2013, respectively, related to the options that vested during such time period.  The stock-based expense recorded reduced after-tax net income per share by $0.03 for each of the six months ended February 28, 2014 and 2013, respectively.  As of February 28, 2014, the total compensation cost for non-vested options not yet recognized in the Company’s consolidated statements of operations was $503,979 net of estimated forfeitures.  Additional stock-based compensation expense of $217,396 is expected through the remainder of fiscal year 2014, and expense of $186,598 and $99,985 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:
		Six Months Ended
		February 28,			February 28,
		2014			2013
	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 six months ended February 28, 2014 and 2013 was $8.60 and $5.53, respectively.  The weighted average remaining contractual life of the options outstanding as of February 28, 2014 and 2013 was 5.02 years and 4.58 years, respectively.

Note_10_Geographic_And_Segment

Note 10 - Geographic And Segment Information	6 Months Ended
	Feb. 28, 2014
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 six months ended February 28, 2014 and 2013 were as follows:
			Three Months Ended						Six Months Ended
			February 28,			February 28,			February 28,			February 28,
			2014			2013			2014			2013
	Inside the U.S.A. to unaffiliated customers			62.1	%		65.6	%		66.6	%		68.4	%
	Outside the U.S.A to:
	Joint ventures in which the Company is a shareholder directly and indirectly			12.9	%		18.2	%		11.7	%		16.8	%
	Unaffiliated customers			25	%		16.2	%		21.7	%		14.8	%
				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 months ended February 28, 2014 and 2013 were as follows:
			Three Months Ended
			February 28,			% of Total Fees			February 28,			% of Total Fees for
			2014			for Services			2013			Services Provided
						Provided to						to Joint Ventures
						Joint Ventures
	China		$	523,451			25.4	%	$	450,586			25.4	%
	Germany			263,556			12.8	%		249,513			14.1	%
	Japan			167,410			8.2	%		169,205			9.6	%
	India			166,858			8.1	%		—			0	%
	Poland			152,518			7.4	%		154,839			8.7	%
	Thailand			130,441			6.3	%		148,303			8.4	%
	France			122,972			6	%		147,896			8.3	%
	Korea			108,797			5.3	%		123,388			7	%
	Sweden			92,223			4.5	%		77,627			4.4	%
	United Kingdom			79,935			3.9	%		35,754			2	%
	Finland			76,537			3.7	%		72,329			4.1	%
	Other			172,973			8.4	%		141,441			8	%
			$	2,057,671			100	%	$	1,770,881			100	%
			Six Months Ended
			February 28,			% of Total Fees			February 28,			% of Total Fees for
			2014			for Services			2013			Services Provided
						Provided to						to Joint Ventures
						Joint Ventures
	China		$	1,111,633			26.7	%	$	943,897			26.1	%
	Germany			527,111			12.6	%		492,213			13.6	%
	Japan			340,691			8.2	%		371,186			10.3	%
	Poland			317,085			7.6	%		266,311			7.4	%
	Thailand			282,999			6.8	%		301,989			8.4	%
	Korea			270,221			6.5	%		262,131			7.2	%
	France			251,075			6	%		276,398			7.6	%
	Sweden			202,193			4.8	%		164,619			4.6	%
	Finland			181,740			4.4	%		160,180			4.4	%
	India			166,858			4	%		—			0	%
	United Kingdom			154,632			3.7	%		102,812			2.8	%
	Other			361,081			8.7	%		275,422			7.6	%
			$	4,167,319			100	%	$	3,617,158			100	%
	The following table sets forth the Company’s net sales for the three and six months ended February 28, 2014 and 2013 by segment:
			Three Months Ended						Six Months Ended
			February 28,			February 28,			February 28,			February 28,
			2014			2013			2014			2013
	ZERUST® sales		$	5,555,051		$	4,710,412		$	11,304,064		$	9,505,695
	Natur-Tec™ sales			663,957			535,938			1,224,044			1,032,402
	Total net sales		$	6,219,008		$	5,246,350		$	12,528,108		$	10,538,097
	The following table sets forth the Company’s cost of goods sold for the three and six months ended February 28, 2014 and 2013 by segment:
			Three Months Ended												Six Months Ended
			February 28,			% of			February 28,			% of			February 28,		% of			February 28,		% of
			2014			Product			2013			Product			2014		Product			2013		Product
						Sales*						Sales*					Sales*					Sales*
	Direct cost of goods sold
	ZERUST®		$	2,965,790			53.4	%	$	2,623,070			55.7	%	$	6,047,554		53.5	%	$	5,267,365		55.4	%
	Natur-Tec®			490,573			73.9	%		453,147			84.6	%		940,037		76.8	%		892,820		86.5	%
Indirect cost of goods sold			595,470			—			557,696			—			1,222,273		—			1,164,700		—
Total net cost of goods sold		$	4,051,833					$	3,633,913					$	8,209,864				$	7,324,885
*	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			As of
		February 28,			August 31,
		2014			2013
Brazil		$	934,780		$	1,193,373
India			332,217			—
North America			49,554,310			47,860,576
Total assets		$	50,821,307		$	49,053,949
		Six Months Ended
		February 28,			February 28,
		2014			2013
Brazil		$	1,153,012		$	1,131,469
India			168,779			—
North America			11,206,317			9,406,628
Total net sales		$	12,528,108		$	10,538,097
		Six Months Ended
		February 28,			February 28,
		2014			2013
Brazil		$	(145,955	)	$	(106,759	)
India			5,800			—
North America			3,307,688			1,950,278
Total operating income		$	3,167,533		$	1,843,519
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	6 Months Ended
	Feb. 28, 2014
Research and Development [Abstract]	'
Research, Development, and Computer Software Disclosure [Text Block]	'
	11.        RESEARCH AND DEVELOPMENT
	The Company expenses all costs related to product research and development as incurred.   The Company incurred $2,237,865 and $1,850,599 of expense during the six months ended February 28, 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 $137,364 for the six months ended February 28, 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	6 Months Ended
	Feb. 28, 2014
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 $620,000 for management bonuses accrued for six months ended February 28, 2014 compared to a management bonus accrual of $275,000 for the six months ended February 28, 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 60.1% of the Company’s trade joint venture receivables at February 28, 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	6 Months Ended
	Feb. 28, 2014
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
		28-Feb-14
	Cash equivalents	$	3,523,000	$	3,523,000	$	—	$	—
				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_Tables

Note 2 - Inventories (Tables)	6 Months Ended
	Feb. 28, 2014
Inventory Disclosure [Abstract]	'
Schedule of Inventory, Current [Table Text Block]	'
		28-Feb-14		31-Aug-13
	Production materials	$	1,191,107	$	1,096,693
	Finished goods		4,179,094		4,014,856
		$	5,370,201	$	5,111,549

Note_3_Property_and_Equipment_1

Note 3 - Property and Equipment, Net (Tables)	6 Months Ended
	Feb. 28, 2014
Property, Plant and Equipment [Abstract]	'
Property, Plant and Equipment [Table Text Block]	'
		28-Feb-14			31-Aug-13
	Land	$	310,365		$	310,365
	Buildings and improvements		4,540,110			4,613,879
	Machinery and equipment		3,590,893			3,189,671
			8,441,369			8,113,915
	Less accumulated depreciation		(3,010,052	)		(2,790,303	)
		$	5,431,316		$	5,323,612

Note_4_Patents_and_Trademarks_1

Note 4 - Patents and Trademarks, Net (Tables)	6 Months Ended
	Feb. 28, 2014
Disclosure Text Block [Abstract]	'
Schedule of Finite-Lived Intangible Assets [Table Text Block]	'
		28-Feb-14			31-Aug-13
	Patents and trademarks	$	2,185,008		$	2,064,128
	Less accumulated amortization		(1,046,310	)		(1,003,489	)
		$	1,138,698		$	1,060,639

Note_5_Investments_in_Joint_Ve1

Note 5 - Investments in Joint Ventures (Tables)	6 Months Ended
	Feb. 28, 2014
Equity Method Investments and Joint Ventures [Abstract]	'
Condensed Balance Sheet [Table Text Block]	'
		At February 28, 2014
		Total		EXCOR		China		All Other
	Current assets	$	60,798,447	$	21,138,250	$	12,498,369	$	27,161,828
	Total assets		66,244,262		23,578,234		12,520,341		30,145,687
	Current liabilities		17,443,151		3,486,865		3,860,391		10,095,895
	Noncurrent liabilities		2,126,033		—		868,005		1,258,028
	Joint ventures’ equity		46,675,076		20,091,369		7,791,945		18,791,762
	Company’s share of joint ventures’ equity		22,653,729		10,045,687		3,895,973		8,712,069
	Company’s share of joint ventures’ undistributed earnings	$	20,232,259	$	10,014,782	$	3,845,973	$	6,371,504
		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]	'
		Six Months Ended February 28, 2014
		Total		EXCOR		China		All Other
	Net sales	$	58,050,376	$	18,963,579	$	8,257,630	$	30,829,167
	Gross profit		27,600,668		10,072,948		3,834,419		13,693,301
	Net income		5,479,724		3,763,017		553,963		1,162,744
	Company’s share of equity in income of joint ventures	$	2,823,199	$	1,881,705	$	276,948	$	664,546
		Six Months Ended February 28, 2013
		Total		EXCOR		China		All Other
	Net sales	$	54,247,135	$	17,451,153	$	6,929,260	$	29,866,722
	Gross profit		25,852,537		9,105,579		3,290,660		13,456,298
	Net income		4,728,680		3,260,575		524,546		943,559
	Company’s share of equity in income of joint ventures	$	2,292,734	$	1,631,125	$	262,148	$	399,461

Note_7_Stockholders_Equity_Tab

Note 7 - Stockholders' Equity (Tables)	6 Months Ended
	Feb. 28, 2014
Stockholders' Equity Note [Abstract]	'
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]	'
		Options Exercised	Exercise Price
		1,000	$7.65
		Options Exercised	Exercise Price
		25,140	$9.95
		1,734	7.65

Note_8_Net_Income_Per_Common_S1

Note 8 - Net Income Per Common Share (Tables)	6 Months Ended
	Feb. 28, 2014
Earnings Per Share [Abstract]	'
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	'
		Three Months Ended				Six Months Ended
	Numerators:	February 28,		February 28,		February 28,		February 28,
		2014		2013		2014		2013
	Net income attributable to NTIC	$	1,025,044	$	434,410	$	1,883,630	$	824,032
	Denominator:
	Basic – weighted shares outstanding		4,434,837		4,418,821		4,434,770		4,409,954
	Weighted shares assumed upon exercise of stock options		144,766		66,255		131,333		50,243
	Diluted – weighted shares outstanding		4,579,603		4,485,076		4,566,103		4,460,197
	Basic earnings per share:	$	0.23	$	0.1	$	0.42	$	0.19
	Diluted earnings per share:	$	0.22	$	0.1	$	0.41	$	0.18

Note_9_StockBased_Compensation1

Note 9 - Stock-Based Compensation (Tables)	6 Months Ended
	Feb. 28, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	'
		Six Months Ended
		February 28,			February 28,
		2014			2013
	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)	6 Months Ended
	Feb. 28, 2014
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						Six Months Ended
		February 28,			February 28,			February 28,			February 28,
		2014			2013			2014			2013
	Inside the U.S.A. to unaffiliated customers		62.1	%		65.6	%		66.6	%		68.4	%
	Outside the U.S.A to:
	Joint ventures in which the Company is a shareholder directly and indirectly		12.9	%		18.2	%		11.7	%		16.8	%
	Unaffiliated customers		25	%		16.2	%		21.7	%		14.8	%
			100	%		100	%		100	%		100	%
Reconciliation of Revenue from Segments to Consolidated [Table Text Block]	'
		Three Months Ended						Six Months Ended
		February 28,			February 28,			February 28,			February 28,
		2014			2013			2014			2013
	ZERUST® sales	$	5,555,051		$	4,710,412		$	11,304,064		$	9,505,695
	Natur-Tec™ sales		663,957			535,938			1,224,044			1,032,402
	Total net sales	$	6,219,008		$	5,246,350		$	12,528,108		$	10,538,097
Reconciliation of Cost of Good Sold from Segments to Consolidated [Table Text Block]	'
		Three Months Ended												Six Months Ended
		February 28,			% of			February 28,			% of			February 28,		% of			February 28,		% of
		2014			Product			2013			Product			2014		Product			2013		Product
					Sales*						Sales*					Sales*					Sales*
	Direct cost of goods sold
	ZERUST®	$	2,965,790			53.4	%	$	2,623,070			55.7	%	$	6,047,554		53.5	%	$	5,267,365		55.4	%
	Natur-Tec®		490,573			73.9	%		453,147			84.6	%		940,037		76.8	%		892,820		86.5	%
	Indirect cost of goods sold		595,470			—			557,696			—			1,222,273		—			1,164,700		—
	Total net cost of goods sold	$	4,051,833					$	3,633,913					$	8,209,864				$	7,324,885
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]	'
		As of			As of
		February 28,			August 31,
		2014			2013
	Brazil	$	934,780		$	1,193,373
	India		332,217			—
	North America		49,554,310			47,860,576
	Total assets	$	50,821,307		$	49,053,949
Revenue from External Customers by Geographic Areas [Table Text Block]	'
		Six Months Ended
		February 28,			February 28,
		2014			2013
	Brazil	$	1,153,012		$	1,131,469
	India		168,779			—
	North America		11,206,317			9,406,628
	Total net sales	$	12,528,108		$	10,538,097
Schedule of Segment Reporting Information, by Segment [Table Text Block]	'
		Six Months Ended
		February 28,			February 28,
		2014			2013
	Brazil	$	(145,955	)	$	(106,759	)
	India		5,800			—
	North America		3,307,688			1,950,278
	Total operating income	$	3,167,533		$	1,843,519
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
		February 28,			% of Total Fees			February 28,			% of Total Fees for
		2014			for Services			2013			Services Provided
					Provided to						to Joint Ventures
					Joint Ventures
	China	$	523,451			25.4	%	$	450,586			25.4	%
	Germany		263,556			12.8	%		249,513			14.1	%
	Japan		167,410			8.2	%		169,205			9.6	%
	India		166,858			8.1	%		—			0	%
	Poland		152,518			7.4	%		154,839			8.7	%
	Thailand		130,441			6.3	%		148,303			8.4	%
	France		122,972			6	%		147,896			8.3	%
	Korea		108,797			5.3	%		123,388			7	%
	Sweden		92,223			4.5	%		77,627			4.4	%
	United Kingdom		79,935			3.9	%		35,754			2	%
	Finland		76,537			3.7	%		72,329			4.1	%
	Other		172,973			8.4	%		141,441			8	%
		$	2,057,671			100	%	$	1,770,881			100	%
		Six Months Ended
		February 28,			% of Total Fees			February 28,			% of Total Fees for
		2014			for Services			2013			Services Provided
					Provided to						to Joint Ventures
					Joint Ventures
	China	$	1,111,633			26.7	%	$	943,897			26.1	%
	Germany		527,111			12.6	%		492,213			13.6	%
	Japan		340,691			8.2	%		371,186			10.3	%
	Poland		317,085			7.6	%		266,311			7.4	%
	Thailand		282,999			6.8	%		301,989			8.4	%
	Korea		270,221			6.5	%		262,131			7.2	%
	France		251,075			6	%		276,398			7.6	%
	Sweden		202,193			4.8	%		164,619			4.6	%
	Finland		181,740			4.4	%		160,180			4.4	%
	India		166,858			4	%		—			0	%
	United Kingdom		154,632			3.7	%		102,812			2.8	%
	Other		361,081			8.7	%		275,422			7.6	%
		$	4,167,319			100	%	$	3,617,158			100	%

Note_13_Fair_Value_Measurement1

Note 13 - Fair Value Measurements (Tables)	6 Months Ended
	Feb. 28, 2014
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
		28-Feb-14
	Cash equivalents	$	3,523,000	$	3,523,000	$	—	$	—
				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 $)	Feb. 28, 2014	Aug. 31, 2013
Inventories [Abstract]	'	'
Production materials	$1,191,107	$1,096,693
Finished goods	4,179,094	4,014,856
	$5,370,201	$5,111,549

Note_3_Property_and_Equipment_2

Note 3 - Property and Equipment, Net (Details) - Components of Property and Equipment, Net (USD $)	Feb. 28, 2014	Aug. 31, 2013
Components of Property and Equipment, Net [Abstract]	'	'
Land	$310,365	$310,365
Buildings and improvements	4,540,110	4,613,879
Machinery and equipment	3,590,893	3,189,671
	8,441,369	8,113,915
Less accumulated depreciation	-3,010,052	-2,790,303
	$5,431,316	$5,323,612

Note_4_Patents_and_Trademarks_2

Note 4 - Patents and Trademarks, Net (Details) (USD $)	6 Months Ended
	Feb. 28, 2014
Note 4 - Patents and Trademarks, Net (Details) [Line Items]	'
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
Patents and Trademarks [Member]	'
Note 4 - Patents and Trademarks, Net (Details) [Line Items]	'
Finite-Lived Intangible Asset, Useful Life	'7 years

Note_4_Patents_and_Trademarks_3

Note 4 - Patents and Trademarks, Net (Details) - Patents and Trademarks, Net (USD $)	Feb. 28, 2014	Aug. 31, 2013
Patents and Trademarks, Net [Abstract]	'	'
Patents and trademarks	$2,185,008	$2,064,128
Less accumulated amortization	-1,046,310	-1,003,489
	$1,138,698	$1,060,639

Note_5_Investments_in_Joint_Ve2

Note 5 - Investments in Joint Ventures (Details) (Mutec [Member], USD $)	Nov. 30, 2013
Mutec [Member]	'
Note 5 - Investments in Joint Ventures (Details) [Line Items]	'
Financing Receivable, Net	$177,273

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 $)	Feb. 28, 2014	Aug. 31, 2013
Condensed Balance Sheet Statements, Captions [Line Items]	'	'
Current assets	$60,798,447	$63,052,410
Total assets	66,244,262	68,417,142
Current liabilities	17,443,151	16,107,597
Noncurrent liabilities	2,126,033	2,488,057
Joint venturesb equity	46,675,076	49,821,488
Companybs share of joint venturesb equity	22,653,729	24,702,981
Companybs share of joint venturesb undistributed earnings	20,232,259	22,281,510
EXCOR [Member]	'	'
Condensed Balance Sheet Statements, Captions [Line Items]	'	'
Current assets	21,138,250	25,955,136
Total assets	23,578,234	28,391,787
Current liabilities	3,486,865	3,572,004
Joint venturesb equity	20,091,369	24,819,783
Companybs share of joint venturesb equity	10,045,687	12,409,893
Companybs share of joint venturesb undistributed earnings	10,014,782	12,378,988
NTI ASEAN [Member]	'	'
Condensed Balance Sheet Statements, Captions [Line Items]	'	'
Current assets	12,498,369	11,200,355
Total assets	12,520,341	11,226,755
Current liabilities	3,860,391	3,080,118
Noncurrent liabilities	868,005	871,886
Joint venturesb equity	7,791,945	7,274,751
Companybs share of joint venturesb equity	3,895,973	3,637,375
Companybs share of joint venturesb undistributed earnings	3,845,973	3,587,375
All Other [Member]	'	'
Condensed Balance Sheet Statements, Captions [Line Items]	'	'
Current assets	27,161,828	25,896,919
Total assets	30,145,687	28,798,600
Current liabilities	10,095,895	9,455,475
Noncurrent liabilities	1,258,028	1,616,171
Joint venturesb equity	18,791,762	17,726,954
Companybs share of joint venturesb equity	8,712,069	8,655,713
Companybs share of joint venturesb undistributed earnings	$6,371,504	$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		6 Months Ended
	Feb. 28, 2014	Feb. 28, 2013	Feb. 28, 2014	Feb. 28, 2013
Condensed Income Statements, Captions [Line Items]	'	'	'	'
Net sales	'	'	$58,050,376	$54,247,135
Gross profit	'	'	27,600,668	25,852,537
Net income	'	'	5,479,724	4,728,680
Companybs share of equity in income of joint ventures	1,395,451	1,138,438	2,823,199	2,292,734
EXCOR [Member]	'	'	'	'
Condensed Income Statements, Captions [Line Items]	'	'	'	'
Net sales	'	'	18,963,579	17,451,153
Gross profit	'	'	10,072,948	9,105,579
Net income	'	'	3,763,017	3,260,575
Companybs share of equity in income of joint ventures	'	'	1,881,705	1,631,125
NTI ASEAN [Member]	'	'	'	'
Condensed Income Statements, Captions [Line Items]	'	'	'	'
Net sales	'	'	8,257,630	6,929,260
Gross profit	'	'	3,834,419	3,290,660
Net income	'	'	553,963	524,546
Companybs share of equity in income of joint ventures	'	'	276,948	262,148
All Other [Member]	'	'	'	'
Condensed Income Statements, Captions [Line Items]	'	'	'	'
Net sales	'	'	30,829,167	29,866,722
Gross profit	'	'	13,693,301	13,456,298
Net income	'	'	1,162,744	943,559
Companybs share of equity in income of joint ventures	'	'	$664,546	$399,461

Note_6_Corporate_Debt_Details

Note 6 - Corporate Debt (Details) (USD $)	6 Months Ended			1 Months Ended
	Feb. 28, 2014	Feb. 28, 2014	Aug. 31, 2013	Dec. 31, 2013	Feb. 28, 2014	Aug. 31, 2013
	London Interbank Offered Rate (LIBOR) [Member]	Term Loan [Member]	Term Loan [Member]	Revolving Credit Facility [Member]	Revolving Credit Facility [Member]	Revolving Credit Facility [Member]
	Revolving Credit Facility [Member]
Note 6 - Corporate Debt (Details) [Line Items]	'	'	'	'	'	'
Long-term Debt, Gross	'	'	$933,413	'	'	'
Line of Credit Facility, Amount Outstanding	'	0	'	'	0	0
Line of Credit Facility, Maximum Borrowing Capacity	'	'	'	'	$3,000,000	'
Debt Instrument, Basis Spread on Variable Rate	2.15%	'	'	'	'	'
Debt Instrument, Maturity Date	'	'	'	7-Jan-15	'	'

Note_7_Stockholders_Equity_Det

Note 7 - Stockholders' Equity (Details) (USD $)	6 Months Ended
	Feb. 28, 2014	Feb. 28, 2013
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, Options, Grants in Period, Gross	56,373	118,294
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	14.83	10.25

Note_7_Stockholders_Equity_Det1

Note 7 - Stockholders' Equity (Details) - Exercised Stock Options (USD $)	6 Months Ended
	Feb. 28, 2014	Feb. 28, 2013	Feb. 28, 2013
	Exercise 1 [Member]	Exercise 2 [Member]	Exercise 3 [Member]
Note 7 - Stockholders' Equity (Details) - Exercised Stock Options [Line Items]	'	'	'
Options Exercised	1,000	25,140	1,734
Exercise Price	$7.65	$9.95	$7.65

Note_8_Net_Income_Per_Common_S2

Note 8 - Net Income Per Common Share (Details) (Equity Option [Member])	3 Months Ended		6 Months Ended
	Feb. 28, 2014	Feb. 28, 2013	Feb. 28, 2014	Feb. 28, 2013
Equity Option [Member]	'	'	'	'
Note 8 - Net Income Per Common Share (Details) [Line Items]	'	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	0	48,000	0	48,000

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		6 Months Ended
	Feb. 28, 2014	Feb. 28, 2013	Feb. 28, 2014	Feb. 28, 2013
Reconciliation of the Earnings Per Share Computations [Abstract]	'	'	'	'
Net income attributable to NTIC (in Dollars)	$1,025,044	$434,410	$1,883,630	$824,032
Basic b weighted shares outstanding	4,434,837	4,418,821	4,434,770	4,409,954
Weighted shares assumed upon exercise of stock options	144,766	66,255	131,333	50,243
Diluted b weighted shares outstanding	4,579,603	4,485,076	4,566,103	4,460,197
Basic earnings per share: (in Dollars per share)	$0.23	$0.10	$0.42	$0.19
Diluted earnings per share: (in Dollars per share)	$0.22	$0.10	$0.41	$0.18

Note_9_StockBased_Compensation2

Note 9 - Stock-Based Compensation (Details) (USD $)	6 Months Ended
	Feb. 28, 2014	Feb. 28, 2013
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, Net of Tax, Per Share (in Dollars per share)	$0.03	$0.03
Allocated Share-based Compensation Expense, Estimate, Remainder of Fiscal Year	$217,396	'
Allocated Share-based Compensation Expense, Estimate, Next Fiscal Year	186,598	'
Allocated Share-based Compensation Expense, Estimate, Fiscal Year Two	99,985	'
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)	$8.60	$5.53
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	'5 years 7 days	'4 years 211 days
Net of Estimated Forfeitures [Member]	'	'
Note 9 - Stock-Based Compensation (Details) [Line Items]	'	'
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options	503,979	'
Employee Stock Option [Member]	'	'
Note 9 - Stock-Based Compensation (Details) [Line Items]	'	'
Stock or Unit Option Plan Expense	$236,623	$137,550
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)	56,373	118,294
2007 Plan [Member] | Minimum [Member] | One Year after Date of Grant [Member]	'	'
Note 9 - Stock-Based Compensation (Details) [Line Items]	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	'3 years	'
2007 Plan [Member] | Maximum [Member] | One Year after Date of Grant [Member]	'	'
Note 9 - Stock-Based Compensation (Details) [Line Items]	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	'4 years	'
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	6 Months Ended
	Feb. 28, 2014	Feb. 28, 2013
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 (Geographic Concentration Risk [Member], Sales Revenue, Net [Member])	3 Months Ended		6 Months Ended
	Feb. 28, 2014	Feb. 28, 2013	Feb. 28, 2014	Feb. 28, 2013
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	62.10%	65.60%	66.60%	68.40%
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	12.90%	18.20%	11.70%	16.80%
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	25.00%	16.20%	21.70%	14.80%

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	6 Months Ended
	Feb. 28, 2014	Feb. 28, 2014
Three Months Ended [Member] | CHINA	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	$523,451	$450,586
Percentage of Total Fees for Services Provided to Joint Ventures	25.40%	25.40%
Three Months Ended [Member] | GERMANY	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	263,556	249,513
Percentage of Total Fees for Services Provided to Joint Ventures	12.80%	14.10%
Three Months Ended [Member] | JAPAN	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	167,410	169,205
Percentage of Total Fees for Services Provided to Joint Ventures	8.20%	9.60%
Three Months Ended [Member] | INDIA	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	166,858	'
Percentage of Total Fees for Services Provided to Joint Ventures	8.10%	0.00%
Three Months Ended [Member] | POLAND	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	152,518	154,839
Percentage of Total Fees for Services Provided to Joint Ventures	7.40%	8.70%
Three Months Ended [Member] | THAILAND	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	130,441	148,303
Percentage of Total Fees for Services Provided to Joint Ventures	6.30%	8.40%
Three Months Ended [Member] | FRANCE	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	122,972	147,896
Percentage of Total Fees for Services Provided to Joint Ventures	6.00%	8.30%
Three Months Ended [Member] | Korea [Member]	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	108,797	123,388
Percentage of Total Fees for Services Provided to Joint Ventures	5.30%	7.00%
Three Months Ended [Member] | SWEDEN	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	92,223	77,627
Percentage of Total Fees for Services Provided to Joint Ventures	4.50%	4.40%
Three Months Ended [Member] | UNITED KINGDOM	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	79,935	35,754
Percentage of Total Fees for Services Provided to Joint Ventures	3.90%	2.00%
Three Months Ended [Member] | FINLAND	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	76,537	72,329
Percentage of Total Fees for Services Provided to Joint Ventures	3.70%	4.10%
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)	172,973	141,441
Percentage of Total Fees for Services Provided to Joint Ventures	8.40%	8.00%
Three Months Ended [Member]	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	2,057,671	1,770,881
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)	1,111,633	943,897
Percentage of Total Fees for Services Provided to Joint Ventures	26.70%	26.10%
Six Months Ended [Member] | GERMANY	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	527,111	492,213
Percentage of Total Fees for Services Provided to Joint Ventures	12.60%	13.60%
Six Months Ended [Member] | JAPAN	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	340,691	371,186
Percentage of Total Fees for Services Provided to Joint Ventures	8.20%	10.30%
Six Months Ended [Member] | INDIA	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	166,858	'
Percentage of Total Fees for Services Provided to Joint Ventures	4.00%	0.00%
Six Months Ended [Member] | POLAND	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	317,085	266,311
Percentage of Total Fees for Services Provided to Joint Ventures	7.60%	7.40%
Six Months Ended [Member] | THAILAND	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	282,999	301,989
Percentage of Total Fees for Services Provided to Joint Ventures	6.80%	8.40%
Six Months Ended [Member] | FRANCE	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	251,075	276,398
Percentage of Total Fees for Services Provided to Joint Ventures	6.00%	7.60%
Six Months Ended [Member] | Korea [Member]	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	270,221	262,131
Percentage of Total Fees for Services Provided to Joint Ventures	6.50%	7.20%
Six Months Ended [Member] | SWEDEN	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	202,193	164,619
Percentage of Total Fees for Services Provided to Joint Ventures	4.80%	4.60%
Six Months Ended [Member] | UNITED KINGDOM	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	154,632	102,812
Percentage of Total Fees for Services Provided to Joint Ventures	3.70%	2.80%
Six Months Ended [Member] | FINLAND	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	181,740	160,180
Percentage of Total Fees for Services Provided to Joint Ventures	4.40%	4.40%
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)	361,081	275,422
Percentage of Total Fees for Services Provided to Joint Ventures	8.70%	7.60%
Six Months Ended [Member]	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'
Fees for Services Provided to Joint Ventures (in Dollars) (in Dollars)	$4,167,319	$3,617,158
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		6 Months Ended
	Feb. 28, 2014	Feb. 28, 2013	Feb. 28, 2014	Feb. 28, 2013
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'	'	'
Net Sales	$6,219,008	$5,246,350	$12,528,108	$10,538,097
ZERUST [Member]	'	'	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'	'	'
Net Sales	5,555,051	4,710,412	11,304,064	9,505,695
Natur-Tec [Member]	'	'	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'	'	'
Net Sales	$663,957	$535,938	$1,224,044	$1,032,402

Note_10_Geographic_And_Segment5

Note 10 - Geographic And Segment Information (Details) - Cost of Goods Sold by Segment (USD $)	3 Months Ended				6 Months Ended
	Feb. 28, 2014		Feb. 28, 2013		Feb. 28, 2014		Feb. 28, 2013
Direct cost of goods sold	'		'		'		'
Cost of goods sold	$4,051,833		$3,633,913		$8,209,864		$7,324,885
ZERUST [Member] | Direct Cost of Goods Sold [Member]	'		'		'		'
Direct cost of goods sold	'		'		'		'
Cost of goods sold	2,965,790		2,623,070		6,047,554		5,267,365
Cost of goods sold as a percentage of product sales	53.40%	[1]	55.70%	[1]	53.50%	[1]	55.40%	[1]
Natur-Tec [Member] | Direct Cost of Goods Sold [Member]	'		'		'		'
Direct cost of goods sold	'		'		'		'
Cost of goods sold	490,573		453,147		940,037		892,820
Cost of goods sold as a percentage of product sales	73.90%	[1]	84.60%	[1]	76.80%	[1]	86.50%	[1]
Indirect Cost of Goods Sold [Member]	'		'		'		'
Direct cost of goods sold	'		'		'		'
Cost of goods sold	$595,470		$557,696		$1,222,273		$1,164,700
Cost of goods sold as a percentage of product sales	'	[1]	'	[1]	'	[1]	'	[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 foreach segment category.

Note_10_Geographic_And_Segment6

Note 10 - Geographic And Segment Information (Details) - Total Assets by Geographic Distribution (USD $)	Feb. 28, 2014	Aug. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Total assets	$50,821,307	$49,053,949
BRAZIL	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Total assets	934,780	1,193,373
INDIA	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Total assets	332,217	'
North America [Member]	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Total assets	$49,554,310	$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		6 Months Ended
	Feb. 28, 2014	Feb. 28, 2013	Feb. 28, 2014	Feb. 28, 2013
Note 10 - Geographic And Segment Information (Details) - Total Net Sales by Geographic Distribution [Line Items]	'	'	'	'
Total net sales	$6,219,008	$5,246,350	$12,528,108	$10,538,097
BRAZIL	'	'	'	'
Note 10 - Geographic And Segment Information (Details) - Total Net Sales by Geographic Distribution [Line Items]	'	'	'	'
Total net sales	'	'	1,153,012	1,131,469
INDIA	'	'	'	'
Note 10 - Geographic And Segment Information (Details) - Total Net Sales by Geographic Distribution [Line Items]	'	'	'	'
Total net sales	'	'	168,779	'
North America [Member]	'	'	'	'
Note 10 - Geographic And Segment Information (Details) - Total Net Sales by Geographic Distribution [Line Items]	'	'	'	'
Total net sales	'	'	$11,206,317	$9,406,628

Note_10_Geographic_And_Segment8

Note 10 - Geographic And Segment Information (Details) - Operating Income by Geographic Distribution (USD $)	3 Months Ended		6 Months Ended
	Feb. 28, 2014	Feb. 28, 2013	Feb. 28, 2014	Feb. 28, 2013
Segment Reporting Information [Line Items]	'	'	'	'
Total operating income	$1,653,234	$969,855	$3,167,533	$1,843,519
BRAZIL	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Total operating income	'	'	-145,955	-106,759
INDIA	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Total operating income	'	'	5,800	'
North America [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Total operating income	'	'	$3,307,688	$1,950,278

Note_11_Research_and_Developme1

Note 11 - Research and Development (Details) (USD $)	3 Months Ended		6 Months Ended
	Feb. 28, 2014	Feb. 28, 2013	Feb. 28, 2014	Feb. 28, 2013
Research and Development [Abstract]	'	'	'	'
Research and Development Expense	$1,099,345	$912,393	$2,237,865	$1,850,599
Research and Development Arrangement, Contract to Perform for Others, Costs Incurred, Gross	'	'	$45,788	$137,364

Note_12_Commitments_and_Contin1

Note 12 - Commitments and Contingencies (Details) (USD $)	Feb. 28, 2014	Aug. 31, 2013	Feb. 28, 2013	Feb. 28, 2014
				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	$620,000	'	$275,000	'
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	60.10%	'	'	'
EntityWideTradeJointVentureReceivablesTwoJointVenturesPercentage	'	49.00%	'	'

Note_13_Fair_Value_Measurement2

Note 13 - Fair Value Measurements (Details) - Assets and Liabilities Measured at Fair Value Recurring Basis (USD $)	Feb. 28, 2014	Aug. 31, 2013
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'	'
Cash equivalents	$3,523,000	$1,020,000
Fair Value, Inputs, Level 1 [Member]	'	'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'	'
Cash equivalents	$3,523,000	$1,020,000