1. General (Details) - USD ($) $ in Thousands	6 Months Ended
	Jul. 03, 2015	Apr. 21, 2015	Jan. 03, 2015	Dec. 31, 2014	Jun. 27, 2014	Dec. 27, 2013
Details
Pension Plan Settlement Agreement, Amount Payable		$ 10,500
Pension Plan Settlement Agreement, Stock Payable		88,117
Pension Plan Settlement Agreement, Payment Schedule	After the second quarter of 2015, the Company will no longer incur expenses related to the terminated Pension Plan but will be responsible for fixed annual installment payments of $750 to the PBGC.
Cash and cash equivalents	$ 2,099		$ 7,038	$ 7,038	$ 5,724	$ 3,376