Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenue:
Product sales	$ 1,629	$ 2,321	$ 3,069	$ 3,935
Royalties	1,846	2,356	3,490	3,980
Total Revenue	3,475	4,677	6,559	7,915
Cost of revenue:
Product sales	708	964	1,252	1,882
Software amortization	90	0	180	0
Total Cost of revenue	798	964	1,432	1,882
Gross profit	2,677	3,713	5,127	6,033
Operating expenses:
Selling, general and administrative	1,656	1,916	3,092	3,605
Research and development	728	603	1,544	1,397
Restructuring	0	0	0	126
Total Operating expenses	2,384	2,519	4,636	5,128
Operating income from operations	293	1,194	491	905
Other, net	30	1	33	0
Income from operations before income taxes	323	1,195	524	905
Income tax expense	0	2	4	4
Net income	$ 323	$ 1,193	$ 520	$ 901
Net income per share:
Basic (in dollars per share)	$ 0.06	$ 0.24	$ 0.10	$ 0.18
Diluted (in dollars per share)	$ 0.06	$ 0.24	$ 0.10	$ 0.18
Weighted average number of common shares outstanding:
Basic (in shares)	5,117	5,041	5,107	5,035
Diluted (in shares)	5,128	5,041	5,107	5,035