Leases (Lease Payments) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Finance Leases
2019	$ 407
2020	515
2021	4,186
2022	0
2023	0
Thereafter	0
Total Lease Payments	5,108
Less: Interest	(256)
Present Value of Net Future Minimum Lease Payments	4,852	$ 5,049
Operating Leases Signed
2019	2,219
2020	2,684
2021	1,563
2022	792
2023	205
Thereafter	22
Total Lease Payments	7,485
Less: Interest	(648)
Present Value of Net Future Minimum Lease Payments	6,837
Operating Less: Leases Not Yet Commenced
2019	(233)
2020	(309)
2021	(78)
2022	0
2023	0
Thereafter	0
Total Lease Payments	(620)
Less: Interest	35
Present Value of Net Future Minimum Lease Payments	(585)
Operating Leases
2019	1,986
2020	2,375
2021	1,485
2022	792
2023	205
Thereafter	22
Total Lease Payments	6,865
Less: Interest	613
Total operating lease obligations	$ 6,252	$ 0