Note 8 - Employee Benefit Plans (Details Textual) (USD $)	3 Months Ended	6 Months Ended
	Mar. 28, 2015	Mar. 28, 2015
Pension Contributions	$ 49,000	$ 101,000
Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year	$ 133,000
Supplemental Employee Retirement Plan [Member]
Supplemental Retirement Benefit Period		15 years
Defined Benefit Plan Percent of Highest Average Salary Base		50.00%
Defined Benefit Plan Number of Years in Average Annual Base Salary		5 years
Defined Benefit Plan Number of Years Preceding Retirement for Average Annual Base Salary Calculation		10 years
Supplemental Employee Retirement Plan [Member] | Minimum [Member]
Defined Benefit Plan Employment Term		30 years
Reduced SERP [Member]
Defined Benefit Plan Retirement Age		65 years
Reduced SERP [Member] | Minimum [Member]
Defined Benefit Plan Employment Term		10 years