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Note 14 - Income Taxes - Provision for Income Taxes (Details) - USD ($)
12 Months Ended
Aug. 31, 2018
Aug. 31, 2017
Current:    
Federal
State 1,000 62,000
Foreign 671,000 754,000
Total current 672,000 816,000
Deferred:    
Federal 477,000 (135,000)
State 24,000 (9,000)
Foreign (297,000) 28,000
Total deferred 204,000 (116,000)
Total income tax expense $ 876,103 $ 699,519