CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Apr. 01, 2012	Apr. 03, 2011
NET SALES	$ 225,749	$ 244,543
COST OF GOODS SOLD	170,765	160,285
GROSS PROFIT	54,984	84,258
EXPENSES:
Selling, general and administrative	24,247	21,085
Research and development	11,741	11,296
Amortization of intangible assets	413	442
Litigation	82	235
Total expenses	36,483	33,058
INCOME FROM OPERATIONS	18,501	51,200
INTEREST AND OTHER INCOME (EXPENSE):
Interest income	202	483
Interest expense	(239)	(1,387)
Other income (expense), net	(8,951)	(2,213)
Total interest and other income (expense), net	(8,988)	(3,117)
INCOME BEFORE INCOME TAXES	9,513	48,083
PROVISION FOR INCOME TAXES	4,231	17,451
INCOME BEFORE EQUITY IN EARNINGS (LOSS) OF JOINT VENTURE	5,282	30,632
EQUITY IN EARNINGS (LOSS) OF JOINT VENTURE	(303)	182
NET INCOME	4,979	30,814
PREFERRED STOCK DIVIDEND AND ACCRETION		866
NET INCOME ATTRIBUTABLE TO COMMON STOCKHOLDERS	$ 4,979	$ 29,948
BASIC EARNINGS PER SHARE (in dollars per share)	$ 0.03	$ 0.25
DILUTED EARNINGS PER SHARE (in dollars per share)	$ 0.03	$ 0.20
BASIC WEIGHTED AVERAGE SHARES OUTSTANDING	121,894	103,791
DILUTED WEIGHTED AVERAGE SHARES OUTSTANDING (in shares)	156,231	140,920