Note 10 - Employee Benefit Plans (Details) - Net Periodic Pension Costs and Related Components (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Oct. 01, 2011
Recognized Net Actuarial Loss [Member] | Pension Plan, Defined Benefit [Member]
Note 10 - Employee Benefit Plans (Details) - Net Periodic Pension Costs and Related Components [Line Items]
Recognized net actuarial loss	$ 56	$ 49	$ 304
Pension Plan, Defined Benefit [Member]
Note 10 - Employee Benefit Plans (Details) - Net Periodic Pension Costs and Related Components [Line Items]
Interest cost	128	146	193
Expected return on plan assets	(142)	(134)	(211)
Recognized net actuarial loss	134	(218)	(69)
Net periodic pension cost	42	61	286
Supplemental Employee Retirement Plan, Defined Benefit [Member]
Note 10 - Employee Benefit Plans (Details) - Net Periodic Pension Costs and Related Components [Line Items]
Interest cost	287	301	282
Prior service cost	227	227	227
Amortization of net loss	136	91	34
Recognized net actuarial loss	807	(1,085)	(297)
Net periodic pension cost	892	836	719
Service cost	$ 242	$ 217	$ 176