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Consolidated Statements of Operations - USD ($)
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Revenues $ 894,000  
Cost of goods sold 788,000  
Gross profit 106,000  
Operating expenses:    
Research and development 160,000 $ 108,000
General and administrative 1,650,000 1,409,000
Total operating expenses 1,810,000 1,517,000
Loss from operations (1,704,000) (1,517,000)
Other income    
Interest, net 58,000  
Government assistance, reimbursements from Department of Energy 93,000  
Gain from sale of assets 5,000 23,000
Other income, net 119,000 4,000
Total other income 275,000 27,000
Net loss $ (1,429,000) $ (1,490,000)
Net loss per share - basic $ (0.04) $ (0.05)
Net loss per share - fully diluted $ (0.04) $ (0.05)
Weighted average number of shares outstanding - basic 38,262,710 31,826,221
Weighted average number of shares outstanding - fully diluted 38,262,710 31,826,221
Comprehensive loss    
Net loss $ (1,429,000) $ (1,490,000)
Research Grant From The Department Of Energy [Member]    
Other income    
Government assistance, reimbursements from Department of Energy 69,000 0
Oklahoma Quality Jobs Act [Member]    
Other income    
Government assistance, reimbursements from Department of Energy $ 24,000 $ 0