Leases (Lease Payments) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Finance Leases
2019	$ 278
2020	521
2021	4,238
2022	0
2023	0
Thereafter	0
Total Lease Payments	5,037
Less: Interest	(223)
Present Value of Net Future Minimum Lease Payments	4,814	$ 5,049
Operating Leases Signed
2019	1,478
2020	2,713
2021	1,589
2022	822
2023	229
Thereafter	30
Total Lease Payments	6,861
Less: Interest	(557)
Present Value of Net Future Minimum Lease Payments	6,304
Operating Less: Leases Not Yet Commenced
2019	0
2020	0
2021	0
2022	0
2023	0
Thereafter	0
Total Lease Payments	0
Less: Interest	0
Present Value of Net Future Minimum Lease Payments	0
Operating Leases
2019	1,478
2020	2,713
2021	1,589
2022	822
2023	229
Thereafter	30
Total Lease Payments	6,861
Less: Interest	(557)
Total operating lease obligations	$ 6,304	$ 0