Revenue, Deferred Revenue And Prepaid Commissions - Additional Information and Disaggregation of Revenue (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) revenue_component	Mar. 31, 2023 USD ($)
Revenues from External Customers and Long-Lived Assets
Total revenue	$ 34,909	$ 33,180
Deferred revenue recognized from previous period	9,700
United States
Revenues from External Customers and Long-Lived Assets
Total revenue	$ 34,142	$ 32,210
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%
International
Revenues from External Customers and Long-Lived Assets
Total revenue	$ 767	$ 970
Wireless revenue
Revenues from External Customers and Long-Lived Assets
Revenue primary component | revenue_component	2
Total revenue	$ 18,595	19,028
Paging revenue
Revenues from External Customers and Long-Lived Assets
Total revenue	17,970	18,525
Product and other revenue
Revenues from External Customers and Long-Lived Assets
Total revenue	$ 625	503
Software revenue
Revenues from External Customers and Long-Lived Assets
Revenue primary component | revenue_component	2
Total revenue	$ 16,314	14,152
License
Revenues from External Customers and Long-Lived Assets
Total revenue	2,626	1,618
Professional services
Revenues from External Customers and Long-Lived Assets
Total revenue	4,025	3,239
Hardware
Revenues from External Customers and Long-Lived Assets
Total revenue	384	356
Operations revenue
Revenues from External Customers and Long-Lived Assets
Total revenue	7,035	5,213
Maintenance
Revenues from External Customers and Long-Lived Assets
Total revenue	$ 9,279	$ 8,939