Accrued Liabilities - Schedule of Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Payables And Accruals [Abstract]
Bonus payable	$ 1,023	$ 1,433
Payroll payable	29	28
Accrued interest	4,536	4,420
Accrued rent	356	410
Accrued expenses	2,044	1,401
Other	323	584
Accrued liabilities	$ 8,311	$ 8,276