Condensed Consolidated Statements Of Operations And Comprehensive Loss (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenue:
Product sales	$ 2,671	$ 5,085	$ 5,580	$ 8,532
Royalties	3,037	3,017	5,385	5,715
Total revenue	5,708	8,102	10,965	14,247
Costs of revenue (exclusive of amortization shown below):
Product sales	1,318	2,159	2,632	3,823
Gross profit	4,390	5,943	8,333	10,424
Operating expenses:
Selling, marketing and product support	1,821	2,638	3,670	5,258
General and administrative	1,309	1,534	2,540	3,006
Research and development	1,017	999	2,287	2,028
Amortization of intangible assets	410	414	818	826
Restructuring	354		430
Goodwill impairment	3,175		3,175
Total operating expenses	8,086	5,585	12,920	11,118
Income (loss) from operations	(3,696)	358	(4,587)	(694)
Other income, net	19	2	24	6
Income (loss) before income taxes	(3,677)	360	(4,563)	(688)
Income tax expense (benefit)	(19)	150	(237)	(90)
Net income (loss)	(3,658)	210	(4,326)	(598)
Net income (loss) per common share:
Basic	$ (0.75)	$ 0.04	$ (0.89)	$ (0.12)
Diluted	$ (0.75)	$ 0.04	$ (0.89)	$ (0.12)
Weighted average number of common shares outstanding:
Basic	4,877	4,828	4,865	4,826
Diluted	4,877	4,916	4,865	4,826
Comprehensive income (loss):
Net income (loss)	(3,658)	210	(4,326)	(598)
Other comprehensive income (loss):
Foreign currency translation adjustment	(416)	(81)	105	598
Comprehensive income (loss)	$ (4,074)	$ 129	$ (4,221)