Revenue Recognition (Schedule of Disaggregated Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Revenues from contract with customer	$ 7,358	$ 6,773
Military [Member]
Disaggregation of Revenue [Line Items]
Revenues from contract with customer	5,360	3,875
Commercial, including Industrial and Medical [Member]
Disaggregation of Revenue [Line Items]
Revenues from contract with customer	977	980
Consumer [Member]
Disaggregation of Revenue [Line Items]
Revenues from contract with customer	289	650
Multiple [Member]
Disaggregation of Revenue [Line Items]
Revenues from contract with customer	732	1,268
North and South America [Member]
Disaggregation of Revenue [Line Items]
Revenues from contract with customer	4,326	3,303
Europe, Middle East, and Africa [Member]
Disaggregation of Revenue [Line Items]
Revenues from contract with customer	2,920	2,531
Asia Pacific [Member]
Disaggregation of Revenue [Line Items]
Revenues from contract with customer	$ 112	$ 939