Leases - Schedule of Maturity of Lease Obligations (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Operating Leases
2019	$ 1,109
2020	1,128
2021	479
2022	280
2023	181
After 2023	2,827
Total lease payments	6,004
Less: interest	1,566
Present value of lease liabilities	4,438
Finance Leases
2019	303
2020	241
2021	142
2022	47
2023	19
After 2023	95
Total lease payments	847
Less: interest	83
Present value of lease liabilities	764
Total
2019	1,412	$ 2,000
2020	1,369	1,500
2021	621	800
2022	327	50
2023	200	400
After 2023	2,922	$ 4,200
Total lease payments	6,851
Less: interest	1,649
Present value of lease liabilities	$ 5,202