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10. INCOME TAXES (Details 2) - USD ($)
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]    
Deferred gain on sale-leaseback $ 0 $ 6,727
Other 61,319 48,263
Prepaids (52,309) (40,692)
Depreciation (2,493,973) (1,989,100)
Inventory (473,643) (225,425)
Net noncurrent deferred tax liability (2,958,606) (2,200,227)
Valuation allowance 0 0
Net deferred tax liability $ (2,958,606) $ (2,200,227)