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Note 15 - Income Taxes (Details) - Tax Effect of the Temporary Differences and Tax Carry Forwards Comprising Net Deferred Taxes: (USD $)
Aug. 31, 2014
Aug. 31, 2013
Current:    
Accrued bonus $ 524,000 $ 277,300
Allowance for doubtful accounts 14,500 7,200
Inventory costs 100,800 24,600
Prepaid expenses and other (40,600) (31,200)
Other accrued expenses 86,800 85,500
Deferred joint venture expenses 104,100 104,100
Total current 789,600 467,500
Noncurrent:    
Property and equipment (171,200) (165,100)
Goodwill 27,300 35,200
Other intangible assets 825,200 914,000
Nonqualified stock options 260,400 248,500
Capital loss carryforward 50,900  
Foreign tax credit carryforward 4,141,100 4,253,900
Research and development credit 1,910,800 1,823,200
New hire retention credit 10,600 10,600
7,055,100 7,120,300
Valuation allowance (6,113,400) (6,086,100)
Total noncurrent $ 941,700 $ 1,034,200