Accrued Expenses and Long-term Liabilities - Schedule of Other Accrued Expenses (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Payables and Accruals [Abstract]
Accrued royalties	$ 2,237	$ 1,934
Contingent consideration	654	502
Medicare payment advance	2,066
Operating lease liability	1,171	1,321
Financing lease liability	150	184
Deferred revenue	209	457
Payable to CGI		888
Accrued sales and marketing - diagnostics	103	197
Accrued lab costs - diagnostics	125	163
Accrued professional fees	1,196	1,399
Taxes payable	311	403
Unclaimed property	565	565
All others	950	1,463
Total other accrued expenses	$ 9,737	$ 9,476