Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Schedule of Financial Instrument Measured on Recurring Basis (Details)

v3.19.1
Fair Value Measurements - Schedule of Financial Instrument Measured on Recurring Basis (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Reported Value Measurement [Member]    
Warrant liability [1] $ 358 $ 361
Fair value of liabilities 3,494 3,488
Fair Value Measurements [Member]    
Warrant liability [1] 358 361
Fair value of liabilities 3,494 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] 358 361
Fair value of liabilities 3,494 3,488
Asuragen [Member]    
Contingent consideration [1] 3,136 3,127
Asuragen [Member] | Fair Value Measurements [Member]    
Contingent consideration [1] 3,136 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] $ 3,136 $ 3,127
[1] See Note 8, Accrued Expenses and Long-Term Liabilities