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12. INCOME TAXES (Details 2) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
Deferred income tax assets:    
Inventories $ 241,874 $ 145,884
Accounts receivable 445,392 253,559
Accrued expenses 116,254 80,068
Net operating loss and tax credit carry forwards 15,243,998 13,276,081
Plant and equipment 39,521 6,014
Stock compensation 448,375 123,841
Lease accounting 248 26,515
Other - interest expense 24,009 12,385
Total deferred income tax assets 16,559,671 13,924,347
Valuation allowance (16,559,671) (13,924,347)
Net deferred tax assets $ 0 $ 0