Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 29, 2012	Dec. 31, 2011
Current Assets:
Cash and cash equivalents	$ 74,463	$ 49,450
Accounts receivable, net of allowance for doubtful accounts of $125 and $66 as of December 29, 2012 and December 31, 2011, respectively	31,479	23,233
Inventories	44,361	34,072
Prepaid expenses and other assets	6,628	14,605
Deferred income taxes	5,411	4,363
Total current assets	162,342	125,723
Property, plant and equipment, net	189,948	143,586
Other assets	4,656	1,802
Goodwill	2,538	1,377
Total assets	359,484	272,488
Current Liabilities:
Accounts payable	28,303	18,806
Current portion of note payable	62
Accrued expenses and other current liabilities	60,529	48,243
Total current liabilities	88,894	67,049
Deferred income taxes	20,463	17,349
Note payable, less current portion	566
Other liabilities	4,470	3,345
Total liabilities	114,393	87,743
Commitments and Contingencies
Stockholders' Equity:
Additional paid-in capital	157,305	138,336
Accumulated other comprehensive loss, net of tax	(883)	(838)
Retained earnings	88,541	47,119
Total stockholders' equity	245,091	184,745
Total liabilities and stockholders' equity	359,484	272,488
Common Class A
Stockholders' Equity:
Common Stock	87	87
Common Class B
Stockholders' Equity:
Common Stock	$ 41	$ 41