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13. Income Tax (Details 1) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
Income Tax Disclosure [Abstract]    
Workers' compensation claims liability $ 1,131,695 $ 947,023
Depreciation and amortization 205,987 279,990
Bad debt reserve 18,984 41,436
Accrued vacation 33,956 37,771
Cash to accrual - 481 adjustment (1,888,302) (3,000,216)
Impairment of notes receivable 394,674 0
Stock compensation 182,385 5,550
Total deferred tax asset (liability) $ 79,379 $ (1,688,446)