Product Warranty Reserves (Tables)

3 Months Ended

Mar. 28, 2015

Product Warranties Disclosures [Abstract]

Schedule of Product Warranty Liability [Table Text Block]

The Company generally provides product warranties related to manufacturing defects and specific performance standards for its products.  Product warranty reserves are included in accrued expenses in the Company's Consolidated Condensed Financial Statements. The following is a summary of the Company's product warranty activity.

	Three Months Ended
	March 28, 2015			March 29, 2014
Product warranty reserve at beginning of period	$	2,214		$	1,850
Warranty reserve assumed in business combination	—			209
Warranty liabilities accrued	1,808			1,014
Warranty liabilities settled	(1,988		)	(1,208		)
Changes for pre-existing warranty liabilities	511			136
Product warranty reserve at end of period	$	2,545		$	2,001