Leases - Lease Maturity (Details) $ in Thousands	Mar. 31, 2019 USD ($)
Leases [Abstract]
2019 (excluding the three months ended March 31, 2019)	$ 491
2020	306
2021	214
2022	157
2023	148
Thereafter	197
Total lease payments	1,513
Less imputed interest	(110)
Total	$ 1,403