Accrued Expenses and Long-Term Liabilities - Schedule of Other Accrued Expenses (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Payables and Accruals [Abstract]
Accrued royalties	$ 931	$ 711
Indemnification liability	875	875
Contingent consideration	250	260
Rent payable	18	110
DOJ settlement	542	80
Accrued professional fees	687	1,746
Taxes payable	389	526
Unclaimed property	565	565
Directors' Fees	41	40
Research related liabilities	388	496
All others	1,074	1,363
Other accrued expenses	$ 5,331	$ 6,236