CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands	Oct. 01, 2011	Dec. 31, 2010	Oct. 02, 2010
Current assets:
Cash and cash equivalents	$ 43,573	$ 97,129	$ 87,319
Short-term marketable securities	28,845	0
Accounts receivable, net	18,689	35,299
Inventories	20,981	20,734
Prepaid expenses and other current assets	4,161	3,319
Total current assets	116,249	156,481
Marketable securities	28,163	8,964
Plant and equipment:
Equipment and furniture	208,998	205,493
Leasehold improvements	46,583	46,482
Projects in process	690	3,693
Property, Plant and Equipment, Gross, Total	256,271	255,668
Less accumulated depreciation and amortization	(198,645)	(187,549)
Property, Plant and Equipment, Net	57,626	68,119
Other assets	239	248
Total assets	202,277	233,812
Current liabilities:
Accounts payable	14,242	17,968
Accrued liabilities	7,592	10,191
Accrued restructuring costs	83	0
Total current liabilities	21,917	28,159
Other long-term liabilities	2,491	2,689
Commitments and contingencies
Stockholders' equity:
Common stock, $0.01 par value, 144,000 shares authorized, 68,287 issued at October 1, 2011 and 66,916 issued at December 31, 2010	683	669
Additional paid-in capital	598,167	589,562
Accumulated deficit	(423,532)	(389,790)
Accumulated other comprehensive income	2,810	2,782
Treasury stock at cost: 115 shares	(259)	(259)
Total stockholders' equity	177,869	202,964
Total liabilities and stockholders' equity	$ 202,277	$ 233,812