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Right-of-use Asset and Leasing Liabilities (Details - Other supplemental information) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Right-of-use Asset And Leasing Liabilities    
Operating cash flows for operating leases $ 33 $ 1,092
Operating cash flows for finance leases 306 43
Financing cash flows for finance leases $ (699) $ (43)