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Income Tax (Details Narrative) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Income Tax      
Undistributed earnings of the Company's foreign subsidiaries $ 8,900,000 $ 8,000,000 $ 7,000,000
Deferred tax liability $ 0 $ 100,000  
Federal income tax rate 21.00%    
State NOL carryforwards $ 252,000,000.0    
Federal NOL carryforwards 201,000,000.0    
Credit loss carryforwards 1,500,000    
Depreciation loss carryforwards 5,100,000    
Credit carryforwards Carbon Oxide Sequestration $ 3,500,000    
Federal net operating loss and other tax credit carryforwards expiration year expire on various dates between 2027 and 2037.