Accrued Expenses and Long-Term Liabilities - Schedule of Other Accrued Expenses (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Payables and Accruals [Abstract]
Accrued royalties	$ 1,082	$ 296
Indemnification liability	875	875
Contingent consideration	317	232
DOJ settlement		500
Accrued professional fees	740	700
Taxes payable	419	515
Unclaimed property	565	565
All others	654	1,321
Total other accrued expenses	$ 4,652	$ 5,004