Disposition of the Hospital Products - Unaudited Pro Forma Condensed Combined Statement of Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Product sales	$ 0	$ 12,243
Total operating expense	14,811	18,740
Operating loss	(14,811)	(6,497)
Total income before income taxes	(16,052)	(10,375)
Cost of products	0	2,457
Research and development expenses	3,852	5,530
Selling, general and administrative expenses	11,012	7,913
Intangible asset amortization	0	203
Changes in fair value of contingent consideration	0	2,478
Other expense - changes in fair value of contingent consideration payable	$ 0	310
Pro Forma
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Product sales		(21)
Total operating expense		12,967
Operating loss		(12,988)
Total income before income taxes		(16,556)
As Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Product sales		12,243
Total operating expense		18,740
Operating loss		(6,497)
Total income before income taxes		(10,375)
Pro Forma Adjustments | Pro Forma
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Product sales		(12,264)
Total operating expense		(5,773)
Operating loss		(6,491)
Total income before income taxes		(6,181)
Pro Forma Adjustments | Pro Forma | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of products		2,449
Research and development expenses		196
Selling, general and administrative expenses		447
Intangible asset amortization		203
Changes in fair value of contingent consideration		2,478
Other expense - changes in fair value of contingent consideration payable		$ 310