Annual report pursuant to Section 13 and 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
Dec. 31, 2018
Dec. 31, 2017
Reported Value Measurement [Member]    
Warrant liability $ 361 $ 473
Fair value of liabilities 3,488 2,054
Fair Value Measurements [Member]    
Warrant liability 361 473
Fair value of liabilities 3,488 2,054
Level 1 [Member]    
Warrant liability
Fair value of liabilities
Level 2 [Member]    
Warrant liability
Fair value of liabilities
Level 3 [Member]    
Warrant liability 361 473
Fair value of liabilities 3,488 2,054
Asuragen [Member]    
Contingent consideration 3,127 1,581
Asuragen [Member] | Fair Value Measurements [Member]    
Contingent consideration 3,127 1,581
Asuragen [Member] | Level 1 [Member]    
Contingent consideration
Asuragen [Member] | Level 2 [Member]    
Contingent consideration
Asuragen [Member] | Level 3 [Member]    
Contingent consideration $ 3,127 $ 1,581