CONSOLIDATED STATEMENTS OF OPERATIONS and COMPREHNSIVE INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenue:
Total revenue	$ 3,015	$ 4,175	$ 11,945	$ 12,857
Costs and expenses:
Cost of sales	282	243	920	933
Research and development	2,279	2,307	6,932	7,067
Selling and marketing	1,874	1,631	5,067	4,785
General and administrative	1,808	1,574	4,895	4,644
Gain on sale of fixed assets	(5,672)		(5,672)
Total costs and expenses	571	5,755	12,142	17,429
Operating income (loss)	2,444	(1,580)	(197)	(4,572)
Interest income	155	1	228	3
Net income (loss)	$ 2,599	$ (1,579)	$ 31	$ (4,569)
Net income (loss) per share - basic	$ 0.12	$ (0.07)	$ 0.00	$ (0.21)
Net income (loss) per share - diluted	$ 0.12	$ (0.07)	$ 0.00	$ (0.21)
Weighted-average shares – basic	21,725	21,532	21,674	21,508
Weighted-average shares – diluted	21,798	21,532	21,733	21,508
Other comprehensive loss, net of tax:
Unrealized loss on available-for-sale securities	$ (170)	$ (170)
Comprehensive income (loss)	2,429	(1,579)	$ (139)	$ (4,569)
Software licenses
Revenue:
Total revenue	814	2,197	5,459	6,287
Software maintenance
Revenue:
Total revenue	1,786	1,526	5,267	4,831
Services and other
Revenue:
Total revenue	$ 415	$ 452	$ 1,219	$ 1,739