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Leases (Details Narrative) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
5. Leases      
Operating ROU assets $ 4,612,000 $ 3,423,000  
Operating lease liabilities 4,677,000 3,471,000  
Rent expense $ 703,000 $ 880,000 $ 949,000
Lease term 15 years