Grants and Awards (Narrative) (Details) - USD ($)				3 Months Ended
	Sep. 29, 2022	Jun. 15, 2020	Mar. 13, 2020	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Award [Line Items]
Revenue from grants				$ 796,000	$ 1,236,000
Award receivable				1,257,000		$ 1,936,000
Medical Technology Enterprise Consortium [Member]
Award [Line Items]
Revenue from grants	$ 16,300,000	$ 15,000,000.0		800,000	1,200,000
Increase in expected revenue from grants	$ 1,300,000
Unbilled award receivable				$ 800,000	$ 1,200,000
Cystic Fibrosis Foundation [Member]
Award [Line Items]
Award receivable			$ 1,000,000.0
Award agreement interruption period			360 days
Maximum [Member] | Cystic Fibrosis Foundation [Member]
Award [Line Items]
Amount of threshold development award			$ 5,000,000.0