Summary of Significant Accounting Policies and Nature of Operations (Tables)

12 Months Ended

Dec. 29, 2012

Summary of Significant Accounting Policies and Nature of Operations [Abstract]

Reserve for sales returns and the reserve for doubtful accounts

	Balance at Beginning of Period		Charged to Revenue, Cost or Expenses		Deductions			Balance at End of Period
Fifty-Two Weeks Ended December 29, 2012
Reserve for sales returns	$	1,726	$	30,058	$	(30,420	)	$	1,364
Reserve for doubtful accounts		183		247		(209	)		221
Fifty-Two Weeks Ended December 31, 2011
Reserve for sales returns	$	1,316	$	30,527	$	(30,117	)	$	1,726
Reserve for doubtful accounts		372		87		(276	)		183
Fifty-Two Weeks Ended January 1, 2011
Reserve for sales returns	$	957	$	26,034	$	(25,675	)	$	1,316
Reserve for doubtful accounts		135		380		(143	)		372

Aggregate warranty liabilities

	December 29, 2012			December 31, 2011
Warranty liabilities, beginning of period	$	384		$	154
Adjustments to preexisting warranty liabilities		(232	)		—
Additions to warranty liabilities		248			352
Reductions to warranty liabilities		(118	)		(122	)
Warranty liabilities, end of period	$	282		$	384