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Revenue (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Revenues $ 5,280 $ 5,465 $ 16,375 $ 16,165
Percentage Of Revenue From Revenue Streams 100.00% 100.00% 100.00% 100.00%
Communication [Member]        
Revenues $ 3,487 $ 3,686 $ 10,561 $ 10,383
Percentage Of Revenue From Revenue Streams 66.00% 67.40% 64.50% 64.20%
Compliance [Member]        
Revenues $ 1,793 $ 1,779 $ 5,814 $ 5,782
Percentage Of Revenue From Revenue Streams 34.00% 32.60% 35.50% 35.80%