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Lease Commitments (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Lease Commitments        
Amortization of right-of-use asset $ 68 $ 65 $ 135 $ 129
Interest expense 28 29 57 59
Operating lease cost 29 29 58 58
Total lease cost $ 125 $ 123 $ 250 $ 246