CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenue:
Product sales	$ 6,729	$ 7,896	$ 8,244
Royalties	8,486	10,247	11,598
Revenue, Net	15,215	18,143	19,842
Cost of revenue:
Product sales	3,477	4,583	6,421
Total cost of revenue	3,477	4,583	6,421
Gross profit	11,738	13,560	13,421
Operating expenses:
Selling, marketing and product support	3,216	5,093	8,370
General and administrative	4,048	4,299	4,571
Research and development	3,520	4,862	3,710
Amortization of intangible assets	455	488	$ 488
Restructuring	$ 119	770
Investigation matter		152	$ 3,723
Impairment of investment		150
Total operating expenses	$ 11,358	15,814	$ 20,862
Operating income (loss) from continuing operations	380	(2,254)	(7,441)
Other, net	21	65	6
Income (loss) from continuing operations before income taxes	401	(2,189)	(7,435)
Income tax expense (benefit)	18	(154)	3,995
Net income from continuing operations	383	(2,035)	(11,430)
Net loss from discontinued operations, net of tax (including 2015 loss on disposal of $1,081)	(3,485)	(7,668)	(4,471)
Net loss	$ (3,102)	$ (9,703)	$ (15,901)
Basic
Continuing operations (in dollars per share)	$ .08	$ (.41)	$ (2.31)
Discontinued operations (in dollars per share)	(.70)	(1.54)	(0.90)
Net basic earnings per share (in dollars per share)	(.62)	(1.95)	(3.21)
Diluted
Continuing operations (in dollars per share)	.08	(.41)	(2.31)
Discontinued operations (in dollars per share)	(.69)	(1.54)	(0.90)
Net diluted earnings per share (in dollars per share)	$ (0.61)	$ (1.95)	$ (3.21)
Weighted average number of common shares outstanding:
Basic (in shares)	5,011	4,983	4,955
Diluted (in shares)	5,019	4,983	4,955