Leases - Right of Use Asset and Lease Liability (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($) lease	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)
Leases [Abstract]
Number of leases | lease	1
Operating lease, right-of-use asset	$ 1,660		$ 2,149
Operating lease liability	1,687		$ 2,179
Operating lease, rent expense	$ 446	$ 434