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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, 2020
Aug. 31, 2019
Accrued compensation $ 173,500 $ 153,400
Inventory costs 64,000 60,900
Other accrued expenses 74,900 39,700
Lease liability 147,500
Goodwill and other intangible assets 581,200 688,400
Stock-based compensation 397,300 299,300
Foreign tax credit carryforward 5,790,500 5,790,500
Other credit and loss carryforwards 4,824,200 3,631,700
Total deferred tax assets 12,053,100 10,663,900
Valuation allowance (11,561,700) (8,764,300)
Total deferred tax assets after valuation allowance 491,400 1,899,600
Property and equipment (50,700) (111,900)
Right-of-use asset (147,500)
Other (83,400) (153,400)
Total deferred tax liabilities (281,600) (265,300)
Net deferred tax assets $ 209,800 $ 1,634,300