The Company, Accrued Warranty Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Activity of Warranty Accrual [Roll Forward]
Balance, beginning of year	$ 79	$ 113
Additions	34	4
Expirations and claims satisfied	(14)	(32)
Total	99	85
Less current portion within accrued expenses and other current liabilities	(66)	(63)	$ (59)
Balance within deferred revenues and other liabilities	$ 33	$ 22
Minimum [Member]
Product Warranty Liability [Line Items]
Standard warranty period	1 year
Offered warranty period	3 years
Maximum [Member]
Product Warranty Liability [Line Items]
Standard warranty period	2 years
Offered warranty period	4 years