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Note 11 - Employee Benefit Plans (Details) - Projected Benefit Obligation Reconciliation (USD $)
 12 Months Ended
Sep. 27, 2014
Sep. 28, 2013
Sep. 29, 2012
Note 11 - Employee Benefit Plans (Details) - Projected Benefit Obligation Reconciliation [Line Items]      
Fair value of plan assets at beginning of year $ 2,045,000    
Fair value of plan assets at end of year 2,253,000 2,045,000  
Accumulated other comprehensive loss (net of tax) 1,790,000 1,562,000 2,441,000
Total recognized in other comprehensive income (loss) 228,000 (879,000) 426,000
Change in Benefit Obligation [Member] | Pension Plan [Member]
      
Note 11 - Employee Benefit Plans (Details) - Projected Benefit Obligation Reconciliation [Line Items]      
Settlement     (218,000)
Distributions (206,000) (202,000) (196,000)
Change in Plan Assets [Member] | Pension Plan [Member]
      
Note 11 - Employee Benefit Plans (Details) - Projected Benefit Obligation Reconciliation [Line Items]      
Settlement     (218,000)
Distributions (210,000) (202,000) (196,000)
Pension Plan [Member]
      
Note 11 - Employee Benefit Plans (Details) - Projected Benefit Obligation Reconciliation [Line Items]      
Benefit obligation at beginning of year 2,973,000 3,181,000 3,231,000
Interest cost 137,000 128,000 146,000
Actuarial loss (gain) 174,000 (134,000) 218,000
Fair value of plan assets at beginning of year 2,045,000 1,739,000 1,660,000
Actual return on plan assets 178,000 201,000 287,000
Employer contributions 240,000 307,000 206,000
Fair value of plan assets at end of year 2,253,000 2,045,000 1,739,000
Benefit obligation at end of year 3,078,000 2,973,000 3,181,000
Funded status (825,000) (928,000) (1,442,000)
Accrued benefit liability (825,000) (928,000) (1,442,000)
Accumulated other comprehensive loss (net of tax) 782,000 706,000 859,000
Net amount recognized (43,000) (222,000) (583,000)
Unrecognized net loss 1,261,000 1,138,000 1,386,000
Net amount recognized 1,261,000 1,138,000 1,386,000
Net loss (gain) 165,000 (192,000) (31,000)
Amortization of net loss (43,000) (56,000) (49,000)
Total recognized in other comprehensive income (loss) $ 122,000 $ (248,000) $ (80,000)