CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS (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	$ 20,968	$ 20,428	$ 40,706	$ 40,400
License and fee income	568	349	1,083	695
Revenues, Total	21,536	20,777	41,789	41,095
COST OF SALES	12,828	11,953	25,114	24,424
GROSS PROFIT	8,708	8,824	16,675	16,671
OPERATING EXPENSES
Selling, general and administrative	5,546	6,118	11,393	12,022
Amortization of purchased intangibles	698	805	1,396	1,651
Research and development	460	414	995	854
Loss on sale of equipment	1	39	2	39
Operating Expenses, Total	6,705	7,376	13,786	14,566
EARNINGS FROM OPERATIONS	2,003	1,448	2,889	2,105
NON-OPERATING INCOME/(EXPENSE)
Interest income	43	12	83	42
Interest expense	(186)	(222)	(363)	(539)
Other	2	49	3	49
Nonoperating Income (Expense), Total	(141)	(161)	(277)	(448)
EARNINGS BEFORE INCOME TAX	1,862	1,287	2,612	1,657
Income tax expense	677	505	969	731
NET EARNINGS	$ 1,185	$ 782	$ 1,643	$ 926
NET EARNINGS PER COMMON SHARE:
Basic	$ 0.04	$ 0.02	$ 0.05	$ 0.03
Diluted	$ 0.04	$ 0.02	$ 0.05	$ 0.03
WEIGHTED AVERAGE SHARES:
Basic	33,418	33,266	33,378	33,240
Diluted	33,753	33,374	33,707	33,385