Leases (Future Annual Minimum Lease Payments and Finance Lease Commitments) (Details) $ in Thousands	Mar. 31, 2020 USD ($)
Operating Leases
2020 (excluding the three months ended March 31, 2020)	$ 798
2021	1,054
2022	1,014
2023	1,022
2024	426
Total undiscounted future minimum lease payments	4,314
Less imputed interest	660
Lease liability	3,654
Finance Leases
2020 (excluding the three months ended March 31, 2020)	15
2021	20
2022	6
2023
2024
Total undiscounted future minimum lease payments	41
Less imputed interest	5
Lease liability	$ 36