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- Lease Costs (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Leases [Abstract]        
Operating lease cost $ 964 $ 954 $ 1,924 $ 1,911
Short-term lease cost 57 38 106 70
Variable Lease, Cost 16 1 57 26
Depreciation of leased assets 109 109 217 218
Interest on lease liabilities 119 125 239 251
Total finance lease cost 228 234 456 469
Total lease cost $ 1,265 $ 1,227 $ 2,543 $ 2,476