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Note 14 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($)
Dec. 31, 2019
Dec. 31, 2018
Deferred tax assets:    
Net operating loss carry forwards $ 18,234,015 $ 15,657,776
Stock based compensation, asset 162,199  
Stock based compensation, liability   (356,049)
Basis difference in goodwill 829,009 1,161,577
Basis difference in fixed assets 3,786
Basis difference in intangible assets 1,968,335 1,564,483
Allowance for bad debt (US)
Stock price guarantee adjustment
Valuation allowance for deferred tax assets (21,197,343) (18,027,787)
Total deferred tax assets
Deferred tax liabilities:    
Basis difference in goodwill
Basis difference in fixed assets
Basis difference in intangible assets
Total deferred tax liabilities
Net deferred taxes