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Income Taxes (Narrative) (Details) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
Deferred Tax Assets, net $ 53,000 $ 2,026,000
Deferred tax asset 1,246,000 5,293,000
Deferred Tax Assets, Valuation Allowance 1,193,000 3,267,000
Unrecognized Tax Benefits 0 $ 0
United States    
Deferred Tax Liabilities, Gross 876,000  
United States | State and Local Jurisdiction    
Operating Loss Carryforwards 25,990,000  
United States | Domestic Tax Authority    
Operating Loss Carryforwards 0  
Interest limitation carryforwards 4,697,000  
Mexico    
Deferred tax asset 469,000  
Operating Loss Carryforwards 0  
Canada    
Deferred tax asset 460,000  
Operating Loss Carryforwards $ 0