Lease Obligations (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Capital Lease Obligations
Remainder of 2018	$ 296
2019	1,185
2020	1,185
2021	363
2022	0
Thereafter	0
Total minimum lease payments	3,029
Interest	(123)
Net present value of minimum lease payments	2,906
Less: Current portion of capital lease obligations	1,110	$ 1,086
Long-term capital lease obligations	1,796	$ 2,629
Operating Lease Obligations
Remainder of 2018	1,236
2019	4,081
2020	2,988
2021	2,270
2022	1,692
Thereafter	771
Total minimum lease payments	$ 13,038