Income Taxes (Details) - USD ($)	3 Months Ended
	Dec. 24, 2017	Dec. 25, 2016	Sep. 25, 2016	Sep. 24, 2017
Deferred Income Tax Expense (Benefit)	$ (20,345,000)	$ 5,420,000
Income tax expense (benefit)	(19,690,000)	6,266,000
Income (Loss) from Continuing Operations before Income Taxes, Domestic	15,637,000	$ 18,706,000
Effective Income Tax Rate Reconciliation, Percent		33.50%
Operating Loss Carryforwards				$ 57,856,000
Federal Net Operating Loss			$ 6,247,000
2017 Tax Act [Member]
Deferred Income Tax Expense (Benefit)	$ (24,872,000)