Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Taxes [Abstract]
Provision for Income Taxes	$ 6	$ 0	$ 28	$ 0
UltraMIST Devices [Member]
Income Taxes [Abstract]
Provision for Income Taxes	6		28
Goodwill	$ 7,300		$ 7,300
Period of goodwill for income tax deductible purpose			15 years