CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenue:
Total revenue	$ 139,025	$ 134,534	$ 142,153
Operating expenses:
Cost of revenue (exclusive of items shown separately below)	26,818	28,267	32,470
Research and development	10,549	13,625	17,514
Technology operations	25,843	27,412	28,844
Selling and marketing	16,350	16,296	21,083
General and administrative	33,168	37,796	43,531
Severance and restructuring	573	7,329	320
Depreciation, amortization and accretion	4,496	3,571	10,446
Capitalized software development impairment	0	0	15,663
Total operating expenses	117,797	134,296	169,871
Operating income (loss)	21,228	238	(27,718)
Interest income	1,099	592	320
Other (expense) income	(2)	167	66
Income (loss) before income taxes	22,325	997	(27,332)
(Provision for) benefit from income taxes	(6,659)	20,859	5,152
Net income (loss)	$ 15,666	$ 21,856	$ (22,180)
Basic net income (loss) per common share (in usd per share)	$ 0.79	$ 1.11	$ (1.14)
Diluted net income (loss) per common share (in usd per share)	$ 0.77	$ 1.09	$ (1.14)
Basic weighted average common shares outstanding (in shares)	19,953,747	19,672,423	19,404,477
Diluted weighted average common shares outstanding (in shares)	20,343,912	19,991,202	19,404,477
Cash dividends declared per common share (in usd per share)	$ 1.250	$ 1.250	$ 0.500
Wireless revenue
Revenue:
Total revenue	$ 75,968	$ 75,622	$ 78,826
Software revenue
Revenue:
Total revenue	$ 63,057	$ 58,912	$ 63,327