Leases - Assets and Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash paid for amounts included in lease liabilities
Operating cash flows from operating leases	$ 644
ROU assets obtained in exchange for lease obligations
Operating leases	3,877
Lease Cost
Operating leases	755
Short-term leases	$ 727
Weighted average remaining lease term (years)	5 years 3 months 18 days
Weighted average discount rate (%)	7.00%
Rent expense		$ 1,400	$ 1,300