Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Revenue:
Product sales	$ 5,085	$ 3,397	$ 8,532	$ 6,209
Royalties	3,017	3,187	5,715	5,778
Total Revenue	8,102	6,584	14,247	11,987
Costs of revenue (exclusive of amortization shown below):
Product sales	2,159	1,510	3,823	2,442
Gross profit	5,943	5,074	10,424	9,545
Operating expenses:
Selling, marketing and product support	2,638	2,146	5,258	4,002
General and administrative	1,534	938	3,006	1,976
Research and development	999	834	2,028	1,611
Acquisition related expenses	0	527	0	527
Amortization of intangible assets	414	216	826	408
Total operating expenses	5,585	4,661	11,118	8,524
Income (loss) from operations	358	413	(694)	1,021
Other income (expense), net	2	(36)	6	(72)
Income (loss) before income taxes	360	377	(688)	949
Income tax expense (benefit)	150	10	(90)	180
Net income (loss)	$ 210	$ 367	$ (598)	$ 769
Net income (loss) per common share:
Basic	$ 0.04	$ 0.08	$ (0.12)	$ 0.18
Diluted	$ 0.04	$ 0.08	$ (0.12)	$ 0.17
Weighted average number of common shares outstanding:
Basic	4,828	4,676	4,826	4,333
Diluted	4,916	4,751	4,826	4,420