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Lease Obligations (Schedule of Lease Information) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Commitments and Contingencies [Abstract]      
Operating lease cost $ 902 $ 952  
Variable lease cost-operating leases 218 246  
Operating lease right-of-use assets 11,883   $ 12,457
Current liabilities 3,123   3,296
Operating lease liabilities (noncurrent portion) 10,057   10,529
Imputed interest (1,000) $ (1,073) (1,073)
Total Operating Lease Liabilities $ 12,180   $ 12,752