Note 11 - Employee Benefit Plans (Details) - Projected Benefit Obligation Reconciliation, SERPs (USD $)	12 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 29, 2012
Change in benefit obligation:
Plan assets at fair value at end of year	$ 2,253,000	$ 2,045,000
Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss):
Total recognized in other comprehensive income (loss)	228,000	(879,000)	426,000
Supplemental Employee Retirement Plan [Member]
Change in benefit obligation:
Benefit obligation at beginning of year	6,938,000	7,461,000	6,102,000
Service cost	219,000	242,000	217,000
Interest cost	315,000	287,000	301,000
Actuarial loss (gain)	298,000	(807,000)	1,085,000
Actual employer contributions	290,000	245,000	244,000
Distributions	(290,000)	(245,000)	(244,000)
Benefit obligation at end of year	7,480,000	6,938,000	7,461,000
Plan assets at fair value at end of year	0	0	0
Reconciliation of funded status to net amount recognized:
Funded status	(7,480,000)	(6,938,000)	(7,461,000)
Amounts recognized in accumulated other comprehensive loss:
Unrecognized net loss	1,627,000	1,380,000	2,324,000
Unrecognized prior service cost			227,000
Net amount recognized	1,627,000	1,380,000	2,551,000
Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss):
Net loss (gain)	298,000	(807,000)	1,085,000
Prior service costs		(227,000)	(227,000)
Amortization of net loss	(52,000)	(136,000)	(91,000)
Total recognized in other comprehensive income (loss)	$ 246,000	$ (1,170,000)	$ 767,000