Set forth below are the results of the discontinued operations: (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Discontinued Operations and Disposal Groups [Abstract]
Product revenue	$ 160	$ 1,647	$ 1,799	$ 2,984
Cost of sales	166	502	728	954
Research and development	30	406	398	792
General and administrative expenses	89	526	573	1,066
Other income		(4)		(5)
(Loss) income from discontinued operations before gain on disposal and income taxes	(125)	217	100	177
Pretax gain on sale of MTI Instruments	7,602		7,602
Deferred tax benefit	70		70
Net income from discontinued operations	$ 7,547	$ 217	$ 7,772	$ 177