1. General (Details) - USD ($) $ in Thousands	9 Months Ended
	Oct. 02, 2015	Apr. 21, 2015	Dec. 31, 2014	Sep. 26, 2014	Dec. 31, 2013
Details
Pension Plan Settlement Agreement, Amount Payable		$ 10,500
Pension Plan Settlement Agreement, Stock Payable		88,117
Pension Plan Settlement Agreement, Payment Schedule	The Company is no longer incurring expenses related to the terminated Pension Plan but is responsible for fixed annual installment payments of $750 to the PBGC
Cash and cash equivalents	$ 3,660		$ 7,038	$ 3,983	$ 3,376