Contingencies and Commitments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Loss Contingencies [Line Items]
Gain on litigation settlement		$ 2,160
Litigation initiated by LifeCell
Loss Contingencies [Line Items]
Estimated present value of the future revenue milestone payments		1,000
Noncash interest expense	$ 20	200	$ 300
National Union Litigation
Loss Contingencies [Line Items]
Legal and other costs		0	$ 400
Damaged Sought	5,000
Damaged received		2,400
Payment to broker		200
Gain on litigation settlement		$ 2,200
Payment within 30 days of settlement agreement | Litigation initiated by LifeCell
Loss Contingencies [Line Items]
Amount awarded to other party	1,000
Payment upon company achieving set revenue milestones | Litigation initiated by LifeCell
Loss Contingencies [Line Items]
Amount awarded to other party	$ 3,000