Condensed Consolidated Statements Of Comprehensive Loss (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
NET REVENUE	$ 50,683	$ 47,708	$ 95,163	$ 102,306
COST OF GOODS SOLD	33,676	35,047	63,716	74,080
GROSS PROFIT	17,007	12,661	31,447	28,226
OPERATING EXPENSES:
Research and development	8,908	9,660	17,621	18,857
Sales and marketing	3,187	3,380	6,295	6,857
General and administrative	2,767	2,166	5,904	5,000
Total operating expenses	14,862	15,206	29,820	30,714
OPERATING INCOME (LOSS)	2,145	(2,545)	1,627	(2,488)
OTHER INCOME:
Interest income (expense), net	(8)	(7)	(15)	0
Other Income, net	1	7	0	12
Total other income (expense), net	(7)	0	(15)	12
INCOME (LOSS) BEFORE INCOME TAXES AND DISCONTINUED OPERATIONS	2,138	(2,545)	1,612	(2,476)
INCOME TAX EXPENSE	49	400	83	309
INCOME (LOSS) FROM CONTINUING OPERATIONS	2,089	(2,945)	1,529	(2,785)
LOSS FROM DISCONTINUED OPERATIONS	(12)	(2,103)	(433)	(4,131)
NET INCOME (LOSS)	2,077	(5,048)	1,096	(6,916)
NET EARNINGS (LOSS) PER SHARE:
Basic and diluted earnings (loss) per share from continuing operations	$ 0.04	$ (0.05)	$ 0.03	$ (0.05)
Loss per share from discontinued operations	$ 0.00	$ (0.04)	$ (0.01)	$ (0.07)
Basic and diluted (in usd per share)	$ 0.04	$ (0.09)	$ 0.02	$ (0.12)
WEIGHTED AVERAGE SHARES USED TO CALCULATE NET INCOME (LOSS) PER SHARE:
Weighted Average Number of Shares Outstanding, Basic	58,384	56,934	58,194	56,484
Weighted Average Number of Shares Outstanding, Diluted	58,797	56,934	58,616	56,484
COMPREHENSIVE LOSS:
NET INCOME (LOSS)	2,077	(5,048)	1,096	(6,916)
Foreign currency translation adjustment	60	(36)	204	39
Comprehensive loss	$ 2,137	$ (5,084)	$ 1,300	$ (6,877)