Segment Reporting (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($) carrier	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) carrier	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Segment Reporting [Abstract]
Number of US wireless carriers | carrier	4		4
Segment Reporting Information [Line Items]
Total sales	$ 25,926	$ 19,727	$ 77,474	$ 49,411
Total gross profit (loss)	8,543	5,048	22,448	12,498
Total income (loss) from operations	1,792	(2,235)	1,773	(7,383)
Segment assets	27,950		27,950		$ 25,426
Operating segments
Segment Reporting Information [Line Items]
Total sales	25,926	19,727	77,474	49,411
Total income (loss) from operations	1,792	(2,235)	1,773	(7,383)
Non-allocated
Segment Reporting Information [Line Items]
Segment assets	5,955		5,955		3,241
Wireless | Continuing Operations
Segment Reporting Information [Line Items]
Segment assets	7,655		7,655		7,640
Wireless | Operating segments
Segment Reporting Information [Line Items]
Total sales	7,898	6,992	22,908	15,462
Total gross profit (loss)	2,839	1,908	6,350	4,668
Total income (loss) from operations	(202)	(2,105)	(3,859)	(5,759)
Telco | Continuing Operations
Segment Reporting Information [Line Items]
Segment assets	14,340		14,340		$ 14,545
Telco | Operating segments
Segment Reporting Information [Line Items]
Total sales	18,028	12,735	54,566	33,949
Total gross profit (loss)	5,704	3,140	16,098	7,830
Total income (loss) from operations	$ 1,994	$ (130)	$ 5,632	$ (1,624)