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Note 14 - Income Taxes - Tax Effect of the Temporary Differences and Tax Carry Forwards Comprising Net Deferred Taxes (Details) - USD ($)
Aug. 31, 2019
Aug. 31, 2018
Accrued compensation $ 153,400 $ 430,600
Inventory costs 60,900 58,900
Other accrued expenses 39,700 63,700
Goodwill and other intangible assets 688,400 695,800
Stock-based compensation 299,300 197,500
Foreign tax credit carryforward 5,790,500 5,789,600
Other credit and loss carryforwards 3,631,700 3,241,200
Total deferred tax assets 10,683,900 10,477,300
Valuation allowance (8,764,300) (8,654,500)
Total deferred tax assets after valuation allowance 1,899,600 1,822,800
Property and equipment (111,900) (124,600)
Other (153,400) (146,200)
Total deferred tax liabilities (265,300) (270,800)
Net deferred tax assets $ 1,634,300 $ 1,552,000