Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 29, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 87,915	$ 116,255
Marketable debt securities – current	51,264	20,020
Accounts receivable, net of allowance for doubtful accounts of $348 and $397, respectively	16,613	13,844
Inventories	35,564	24,851
Prepaid expenses	4,299	5,778
Deferred income taxes	5,401	4,443
Other current assets	9,522	6,004
Total current assets	210,578	191,195
Non-current assets:
Marketable debt securities – non-current	38,642	10,042
Property and equipment, net	79,356	43,850
Deferred income taxes	8,511	12,964
Other assets	4,934	4,606
Total assets	342,021	262,657
Current liabilities:
Accounts payable	67,703	50,141
Customer prepayments	15,194	13,529
Compensation and benefits	21,597	29,806
Taxes and withholding	9,282	9,883
Other current liabilities	19,285	15,691
Total current liabilities	133,061	119,050
Non-current liabilities:
Warranty liabilities	1,457	2,714
Other long-term liabilities	13,806	11,502
Total liabilities	148,324	133,266
Shareholders' equity:
Undesignated preferred stock; 5,000 shares authorized, no shares issued and outstanding	0	0
Common stock, $0.01 par value; 142,500 shares authorized, 55,903 and 56,397 shares issued and outstanding, respectively	559	564
Additional paid-in capital	33,923	47,701
Retained earnings	159,195	81,101
Accumulated other comprehensive income	20	25
Total shareholders’ equity	193,697	129,391
Total liabilities and shareholders’ equity	$ 342,021	$ 262,657