Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 28, 2014	Dec. 28, 2013
Current assets:
Cash and cash equivalents	$ 37,107	$ 58,223
Marketable debt securities – current	45,831	52,159
Accounts receivable, net of allowance for doubtful accounts of $478 and $425, respectively	14,334	14,979
Inventories	43,156	40,152
Prepaid expenses	12,097	9,216
Deferred income taxes	6,910	6,936
Other current assets	9,494	7,874
Total current assets	168,929	189,539
Non-current assets:
Marketable debt securities – non-current	37,822	34,632
Property and equipment, net	151,479	129,542
Goodwill and intangible assets, net	16,403	16,823
Deferred income taxes	6,953	4,943
Other assets	6,831	6,286
Total assets	388,417	381,765
Current liabilities:
Accounts payable	59,368	73,391
Customer prepayments	18,087	15,392
Accrued sales returns	9,194	9,433
Compensation and benefits	24,632	15,242
Taxes and withholding	11,281	12,517
Other current liabilities	11,103	11,207
Total current liabilities	133,665	137,182
Non-current liabilities:
Warranty liabilities	1,822	1,567
Other long-term liabilities	19,963	17,796
Total liabilities	155,450	156,545
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, 53,743 and 54,901 shares issued and outstanding, respectively	537	549
Additional paid-in capital	0	5,382
Retained earnings	232,387	219,276
Accumulated other comprehensive income	43	13
Total shareholders’ equity	232,967	225,220
Total liabilities and shareholders’ equity	$ 388,417	$ 381,765