Leases - Assets and Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Cash paid for amounts included in lease liabilities
Operating cash flows from operating leases	$ 154	$ 183	$ 308	$ 366
ROU assets obtained in exchange for lease obligations
Operating leases	0	0	0	17
Lease Cost
Operating leases	261	248	559	513
Short-term leases	$ 59	$ 6	$ 59	$ 35
Weighted average remaining lease term (years)	4 years		4 years
Weighted average discount rate (%)	7.00%		7.00%