CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Revenue:
Total revenue	$ 16,854	$ 11,309
Costs and expenses:
Cost of services and other	1,210	810
Research and development	9,259	9,093
Selling and marketing	6,324	5,411
General and administrative	6,158	5,419
Total costs and expenses	22,951	20,733
Operating loss	(6,097)	(9,424)
Interest and other income	4	176
Loss before benefit for income taxes	(6,093)	(9,248)
Benefit for income taxes	(269)	(1,634)
Net loss	$ (5,824)	$ (7,614)
Net loss per share – basic	$ (0.27)	$ (0.35)
Net loss per share – diluted	$ (0.27)	$ (0.35)
Weighted-average shares - basic	21,525	21,473
Weighted-average shares - diluted	21,525	21,473
Software licenses
Revenue:
Total revenue	$ 7,973	$ 5,038
Software maintenance
Revenue:
Total revenue	6,679	5,429
Services and other
Revenue:
Total revenue	$ 2,202	$ 842