Accrued Liabilities and Other (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Payables and Accruals [Abstract]
Accrued vacation	$ 813	$ 799
Accrued paid personal leave	607	613
Accrued bonus	1,697	1,023
Other	285	339
Total	$ 3,402	$ 2,774