Leases - Maturities of Lease Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Lease Payments
2019	$ 1,817
2020	1,820
2021	1,060
2022	518
2023	351
Thereafter	5,160
Total	10,726
Undiscounted Cash Flow
2019	250
2020	196
2021	149
2022	132
2023	122
Thereafter	1,674
Total	2,523
Lease Liability
2019	1,567
2020	1,624
2021	911
2022	386
2023	229
Thereafter	3,486
Total	$ 8,203	$ 0