Fair Value Measurements - Schedule of Financial Instrument Measured on Recurring Basis (Details) - USD ($) $ in Thousands		Sep. 30, 2019	Dec. 31, 2018
Reported Value Measurement [Member]
Warrant liability	[1]	$ 326	$ 361
Fair value of liabilities		3,350	3,488
Fair Value Measurements [Member]
Warrant liability	[1]	326	361
Fair value of liabilities		3,350	3,488
Level 1 [Member]
Warrant liability	[1]
Fair value of liabilities
Level 2 [Member]
Warrant liability	[1]
Fair value of liabilities
Level 3 [Member]
Warrant liability	[1]	326	361
Fair value of liabilities		3,350	3,488
Asuragen [Member]
Contingent consideration	[1]	3,024	3,127
Asuragen [Member] | Fair Value Measurements [Member]
Contingent consideration	[1]	3,024	3,127
Asuragen [Member] | Level 1 [Member]
Contingent consideration	[1]
Asuragen [Member] | Level 2 [Member]
Contingent consideration	[1]
Asuragen [Member] | Level 3 [Member]
Contingent consideration	[1]	$ 3,024	$ 3,127

[1] See Note 9, Accrued Expenses and Long-Term Liabilities