Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Lease Expense (Details)

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Commitments and Contingencies - Lease Expense (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Finance lease costs    
Amortization of right-of-use assets $ 5 $ 5
Interest on lease liabilities 4 0
Operating lease costs 482 489
Short term lease costs 10 12
Variable lease costs 1 1
Total lease cost $ 502 $ 507