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Note 11 (Details)	3 Months Ended		9 Months Ended
	Jun. 27, 2015 USD ($)	Jun. 28, 2014 USD ($)	Jun. 27, 2015 USD ($)	Jun. 28, 2014 USD ($)	Sep. 26, 2015 USD ($)	Sep. 27, 2014 USD ($)
Note 11 (Details) [Line Items]
Available-for-sale Securities	$ 103,352,000		$ 103,352,000			$ 128,117,000
Proceeds from Sale and Maturity of Marketable Securities	26,367,000	$ 1,185,000	39,968,000	$ 7,245,000
Marketable Securities, Gain (Loss)	(1,395,000)	$ (65,000)	(1,904,000)	$ (361,000)
Mutual Funds [Member]
Note 11 (Details) [Line Items]
Unrealized Gain (Loss) on Securities			$ (2,500,000)
Number of Funds			28
Marketable Securities	71,600,000		$ 71,600,000
Available-for-sale Securities	$ 90,316,000		$ 90,316,000			$ 128,117,000
Scenario, Forecast [Member] | Mutual Funds [Member]
Note 11 (Details) [Line Items]
Available-for-sale Securities					$ 67,000,000
Scenario, Forecast [Member] | Fixed-to-Floating Perpetual Preferred Stock [Member]
Note 11 (Details) [Line Items]
Available-for-sale Securities					20,000,000
Scenario, Forecast [Member] | Corporate Bond Securities [Member]
Note 11 (Details) [Line Items]
Available-for-sale Securities					$ 24,000,000

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