Contingencies and Commitments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2016
Loss Contingencies [Line Items]
Gain on litigation settlement			$ 2,160
Litigation initiated by LifeCell
Loss Contingencies [Line Items]
Noncash interest expense		$ 20	200
National Union Litigation
Loss Contingencies [Line Items]
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