Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013
Current assets:
Cash and cash equivalents	$ 51,995	$ 58,223
Marketable debt securities – current	69,609	52,159
Accounts receivable, net of allowance for doubtful accounts of $739 and $425, respectively	19,693	14,979
Inventories	53,535	40,152
Prepaid expenses	17,792	9,216
Deferred income taxes	8,786	6,936
Other current assets	11,185	7,874
Total current assets	232,595	189,539
Non-current assets:
Marketable debt securities – non-current	44,441	34,632
Property and equipment, net	165,453	129,542
Goodwill and intangible assets, net	15,986	16,823
Deferred income taxes	3,433	4,943
Other assets	12,279	6,286
Total assets	474,187	381,765
Current liabilities:
Accounts payable	84,197	73,391
Customer prepayments	28,726	15,392
Accrued sales returns	15,262	9,433
Compensation and benefits	33,066	15,242
Taxes and withholding	10,207	12,517
Other current liabilities	15,594	11,207
Total current liabilities	187,052	137,182
Non-current liabilities:
Warranty liabilities	2,722	1,567
Other long-term liabilities	27,506	17,796
Total liabilities	217,280	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, 52,798 and 54,901 shares issued and outstanding, respectively	528	549
Additional paid-in capital	0	5,382
Retained earnings	256,413	219,276
Accumulated other comprehensive (loss) income	(34)	13
Total shareholders’ equity	256,907	225,220
Total liabilities and shareholders’ equity	$ 474,187	$ 381,765