CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Revenue:
Total revenue	$ 16,131	$ 15,465
Costs and expenses:
Research and development	7,105	7,769
Selling and marketing	4,178	3,907
General and administrative	3,296	3,389
Total costs and expenses	15,819	15,940
Patent related income	69	1,582
Operating income	381	1,107
Other income		36
Interest income	844	401
Income before provision (benefit) for income taxes	1,225	1,544
Provision (benefit) for income taxes	(8)	543
Net income	$ 1,233	$ 1,001
Net income per share - basic (in dollars per share)	$ 0.06	$ 0.05
Net income per share - diluted (in dollars per share)	$ 0.06	$ 0.05
Weighted-average shares - basic (in shares)	21,544	21,814
Weighted-average shares - diluted (in shares)	21,605	21,877
Comprehensive income:
Net income	$ 1,233	$ 1,001
Other comprehensive income (net of tax):
Unrealized gain on available for sale securities		19
Comprehensive income	1,233	1,020
Software licenses
Revenue:
Total revenue	8,038	9,139
Costs and expenses:
Cost of software licenses and services	20	274
Software maintenance
Revenue:
Total revenue	5,397	4,923
Services
Revenue:
Total revenue	2,696	1,259
Costs and expenses:
Cost of software licenses and services	$ 1,220	601
Royalties
Revenue:
Total revenue		$ 144