Accrued Liabilities and Other (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Payables and Accruals [Abstract]
Accrued vacation	$ 821	$ 801
Accrued paid personal leave	556	585
Accrued bonus	1,041	1,549
Other	435	557
Total	$ 2,853	$ 3,492