Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Schedule of Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation (Details)

v3.19.1
Fair Value Measurements - Schedule of Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2018
USD ($)
Beginning Balance $ 2,054
Payments (307) [1]
Accretion 331
Cancellation of Obligation/Conversions Exercises
Adjustment to fair value/Mark to Market 1,410
Ending Balance 3,488
Underwriter Warrants[Member]  
Beginning Balance 473
Payments [1]
Accretion
Cancellation of Obligation/Conversions Exercises
Adjustment to fair value/Mark to Market (112)
Ending Balance 361
Asuragen [Member]  
Beginning Balance 1,581
Payments (307) [1]
Accretion 331
Cancellation of Obligation/Conversions Exercises
Adjustment to fair value/Mark to Market 1,522
Ending Balance $ 3,127
[1] Royalty payments of $307,000 are reflected within Cash Flows from Operations.