Revenue, Deferred Revenue And Prepaid Commissions - Additional Information and Disaggregation of Revenue (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) revenue_component	Sep. 30, 2023 USD ($)
Revenues from External Customers and Long-Lived Assets
Total revenue	$ 34,870	$ 35,428	$ 103,761	$ 105,072
Deferred revenue recognized from previous period			21,300
United States
Revenues from External Customers and Long-Lived Assets
Total revenue	$ 34,206	$ 34,662	$ 101,650	$ 102,523
United States | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk
Revenues from External Customers and Long-Lived Assets
Concentration risk percentage (more than)	10.00%	10.00%	10.00%	10.00%
International
Revenues from External Customers and Long-Lived Assets
Total revenue	$ 664	$ 766	$ 2,111	$ 2,549
Wireless revenue
Revenues from External Customers and Long-Lived Assets
Revenue primary component | revenue_component			2
Total revenue	18,261	18,972	$ 55,153	56,877
Paging revenue
Revenues from External Customers and Long-Lived Assets
Total revenue	17,605	18,119	53,208	54,915
Product and other revenue
Revenues from External Customers and Long-Lived Assets
Total revenue	656	853	$ 1,945	1,962
Software revenue
Revenues from External Customers and Long-Lived Assets
Revenue primary component | revenue_component			2
Total revenue	16,609	16,456	$ 48,608	48,195
Operations revenue
Revenues from External Customers and Long-Lived Assets
Total revenue	7,272	7,044	20,624	20,720
License
Revenues from External Customers and Long-Lived Assets
Total revenue	2,042	2,413	6,365	7,723
Professional services
Revenues from External Customers and Long-Lived Assets
Total revenue	4,835	3,833	13,146	10,909
Hardware
Revenues from External Customers and Long-Lived Assets
Total revenue	395	798	1,113	2,088
Maintenance
Revenues from External Customers and Long-Lived Assets
Total revenue	$ 9,337	$ 9,412	$ 27,984	$ 27,475