Commitments and Contingencies (Tables)

6 Months Ended

Jun. 29, 2013

Commitments and Contingencies Disclosure [Abstract]

Warranty Liabilities [Table Text Block]

The activity in the accrued warranty liabilities account was as follows (in thousands): 

	Six Months Ended
	June 29, 2013			June 30, 2012
Balance at beginning of year	$	4,858		$	6,310
Additions charged to costs and expenses for current-year sales	2,113			1,832
Deductions from reserves	(2,568		)	(2,435		)
Changes in liability for pre-existing warranties during the current year, including expirations	(117		)	151
Acquired warranty reserve	658			—
Balance at end of period	$	4,944		$	5,858

Sales Returns [Table Text Block]

The activity in the sales returns liability account was as follows (in thousands):

	Six Months Ended
	June 29, 2013			June 30, 2012
Balance at beginning of year	$	5,330		$	4,402
Additions that reduce net sales	23,388			22,480
Deductions from reserves	(22,963		)	(21,765		)
Acquired sales return reserve	50			—
Balance at end of period	$	5,805		$	5,117