Note 6 - Employee Benefit Plans (Details) - Net Periodic Pension Costs and Related Components (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Mar. 29, 2014	Mar. 30, 2013	Mar. 29, 2014	Mar. 30, 2013
Pension Plan, Defined Benefit [Member]
Note 6 - Employee Benefit Plans (Details) - Net Periodic Pension Costs and Related Components [Line Items]
Interest cost	$ 34	$ 32	$ 68	$ 64
Expected return on plan assets	(41)	(36)	(82)	(72)
Recognized net actuarial loss	11	14	22	28
Net periodic cost	4	10	8	20
Supplemental Employee Retirement Plan, Defined Benefit [Member]
Note 6 - Employee Benefit Plans (Details) - Net Periodic Pension Costs and Related Components [Line Items]
Interest cost	79	72	158	144
Amortization of prior service cost		57		114
Recognized net actuarial loss	13	34	26	68
Net periodic cost	147	223	294	446
Service cost	$ 55	$ 60	$ 110	$ 120

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Amount of gain (loss) related to change in benefit obligation resulting from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover, salary, and temporary deviation from the substantive plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 30

-Glossary Gain or Loss

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The amount of the prior service cost or credit recognized in net periodic benefit cost relating to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation.

+ References

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- Definition

An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 30

-Glossary Expected Return on Plan Assets

-URI http://asc.fasb.org/extlink&oid=6512136

Reference 2: http://www.xbrl.org/2003/role/presentationRef

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The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

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The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments.

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The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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