Note 6 - Employee Benefit Plans (Details) - Net Periodic Pension Costs and Related Components (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Pension Plan [Member]
Note 6 - Employee Benefit Plans (Details) - Net Periodic Pension Costs and Related Components [Line Items]
Interest cost	$ 34	$ 32	$ 102	$ 96
Expected return on plan assets	(41)	(36)	(123)	(108)
Recognized net actuarial loss	11	14	33	42
Net periodic cost	4	10	12	30
Supplemental Employee Retirement Plan [Member]
Note 6 - Employee Benefit Plans (Details) - Net Periodic Pension Costs and Related Components [Line Items]
Interest cost	79	72	237	216
Amortization of prior service cost		57		171
Recognized net actuarial loss	13	34	39	102
Net periodic cost	147	223	441	669
Service cost	$ 55	$ 60	$ 165	$ 180