Commitments and Contingencies - Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Finance Leases
Finance lease right-of-use assets	$ 76	$ 87
Current maturities of long-term obligations	17	17
Long term obligations	22	30
Operating Leases
Operating lease right-of-use assets	3,138	3,133
Current maturities of long-term obligations	$ 1,536	1,719
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Long-term Debt, Current Maturities
Long term obligations	$ 1,629	$ 1,565
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:LongTermDebtNoncurrent