Income Taxes (Details) - USD ($)	3 Months Ended			9 Months Ended
	Jun. 25, 2017	Sep. 25, 2016	Jun. 26, 2016	Jun. 25, 2017	Jun. 26, 2016
Income tax expense (benefit)	$ 1,843,000		$ 3,037,000	$ 9,253,000	$ 22,571,000
Income (Loss) from Continuing Operations before Income Taxes, Domestic	$ 8,130,000		$ 7,404,000	$ 34,358,000	$ 57,929,000
Effective Income Tax Rate Reconciliation, Percent	22.70%		41.00%	26.90%	39.00%
Operating Loss Carryforwards		$ 57,392,000
Federal Net Operating Loss		$ 58,618,000