Leases - Maturities of Operating Leases (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2019	$ 1,309
2020	2,136
2021	1,060
2022	1,038
2023	980
Thereafter	1,863
Total Lease payments	8,386
Less: effect of discounted cash flows during the period	(1,237)
Total	$ 7,149	$ 0