Revenue Recognition - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2022	Sep. 30, 2021
Disaggregation of Revenue [Line Items]
Total sales	$ 18,690	$ 97,028	$ 62,160
Operating Segments | Telco
Disaggregation of Revenue [Line Items]
Total sales	11,571	66,220	41,553
Intersegment
Disaggregation of Revenue [Line Items]
Total sales	0	(5)	(101)
Wireless services sales
Disaggregation of Revenue [Line Items]
Total sales	7,119	30,813	20,708
Equipment sales: | Operating Segments | Telco
Disaggregation of Revenue [Line Items]
Total sales	11,424	66,016	40,663
Equipment sales: | Intersegment
Disaggregation of Revenue [Line Items]
Total sales	0	(5)	(101)
Telco repair sales
Disaggregation of Revenue [Line Items]
Total sales	11	12	27
Telco recycle sales
Disaggregation of Revenue [Line Items]
Total sales	$ 136	$ 192	$ 863