Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 29, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 62,915	$ 97,699
Marketable securities	46,993	0
Accounts receivable, net of allowances of $82 and $117, respectively	21,388	29,289
Inventories	39,659	52,260
Inventories-delivered systems	2,274	1,637
Prepaid expenses and other	7,492	8,119
Deferred income tax assets	8,593	12,406
Total current assets	189,314	201,410
Property, plant and equipment, net	43,213	35,521
Goodwill	11,352	11,990
Intangible assets, net	10,980	14,394
Deferred income tax assets	3,671	2,864
Other assets	924	1,042
Total assets	259,454	267,221
Current liabilities:
Accounts payable	6,398	7,975
Accrued payroll and related expenses	6,670	8,837
Deferred revenue	8,485	5,788
Other current liabilities	7,822	16,709
Income taxes payable	424	707
Current portion of debt obligations	928	765
Total current liabilities	30,727	40,781
Deferred revenue	4,307	4,547
Income taxes payable	2,135	2,401
Other long-term liabilities	2,140	2,813
Debt obligations	4,374	6,687
Total liabilities	43,683	57,229
Commitments and contingencies (Note 12)
Stockholders’ equity:
Preferred stock, $0.001 par value; 3,000,000 shares authorized; no shares issued or outstanding	0	0
Common stock, $0.001 par value, 47,000,000 shares authorized; 23,250,429 and 23,182,771, respectively, issued and outstanding	23	23
Additional paid-in capital	238,326	236,735
Accumulated deficit	(23,850)	(28,315)
Accumulated other comprehensive income	1,272	1,549
Total stockholders’ equity	215,771	209,992
Total liabilities and stockholders’ equity	$ 259,454	$ 267,221