Revenue Recognition (Schedule of Disaggregated Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Revenues from contract with customer	$ 7,159	$ 6,279	$ 14,517	$ 13,052
Military [Member]
Disaggregation of Revenue [Line Items]
Revenues from contract with customer	4,799	3,884	10,159	7,759
Commercial, including Industrial and Medical [Member]
Disaggregation of Revenue [Line Items]
Revenues from contract with customer	1,184	820	2,161	1,800
Consumer [Member]
Disaggregation of Revenue [Line Items]
Revenues from contract with customer	23	500	312	1,150
Multiple [Member]
Disaggregation of Revenue [Line Items]
Revenues from contract with customer	1,153	1,075	1,885	2,343
North and South America [Member]
Disaggregation of Revenue [Line Items]
Revenues from contract with customer	3,790	3,647	8,116	6,950
Europe, Middle East, and Africa [Member]
Disaggregation of Revenue [Line Items]
Revenues from contract with customer	3,099	2,090	6,019	4,621
Asia Pacific [Member]
Disaggregation of Revenue [Line Items]
Revenues from contract with customer	$ 270	$ 542	$ 382	$ 1,481