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Note 9 - Stock-Based Compensation (Tables) | 12 Months Ended
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Oct. 03, 2015
Notes Tables |
Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block] |
|  | Year Ended |
|  | October 3, |  |  | September 27, |  |  | September 28, |
(In thousands) |  | 2015 |  |  | 2014 |  |  | 2013 |
Stock options: |  |  |  |  |  |  |  |  |  |  |  |
Compensation expense |  | $ | 1,007 |  |  | $ | 1,139 |  |  | $ | 951 |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|  | Year Ended |
|  | Octo ber 3 , |  |  | September 2 7 , |  |  | Septem ber 28 , |
|  | 201 5 |  |  | 201 4 |  |  | 201 3 |
Expected term (in years) |  |  | 5.72 |  |  |  | 5.08 |  |  |  | 6.00 |
Risk-free interest rate |  |  | 2.18 | % |  |  | 0.38 | % |  |  | 1.40 | %
Expected volatility |  |  | 37.99 | % |  |  | 39.57 | % |  |  | 47.32 | %
Expected dividend yield |  |  | 0.61 | % |  |  | 0.60 | % |  |  | 0.72 | %
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] |
|  |  |  |  |  | Exercise Price |  |  | Contractual |  |  | Aggregate |
|  |  |  |  |  | Per Share |  |  | Term - |  |  | Intrinsic |
|  | Options |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Weighted |  |  | Weighted |  |  | Value |
(Share amounts in thousands) |  | Outstanding |  |  | Range |  |  | Average |  |  | Average (years) |  |  | (in thousands) |
Outstanding at September 29, 2012 |  |  | 1,160 |  |  |  | $0.36 |  |  |  | - |  |  |  | $20.27 |  |  | $ | 11.09 |  |  |  |  |  |  |  |  |
Granted |  |  | 131 |  |  |  | 16.45 |  |  |  | - |  |  |  | 17.22 |  |  |  | 16.84 |  |  |  |  |  |  |  |  |
Exercised |  |  | (373 | ) |  |  | 0.36 |  |  |  | - |  |  |  | 12.43 |  |  |  | 9.27 |  |  |  |  |  |  | $ | 2,744 |
Outstanding at September 28, 2013 |  |  | 918 |  |  |  | 5.43 |  |  |  | - |  |  |  | 20.27 |  |  |  | 12.65 |  |  |  |  |  |  |  |  |
Granted |  |  | 136 |  |  |  | 19.08 |  |  |  | - |  |  |  | 20.50 |  |  |  | 19.80 |  |  |  |  |  |  |  |  |
Exercised |  |  | (183 | ) |  |  | 5.43 |  |  |  | - |  |  |  | 20.27 |  |  |  | 10.42 |  |  |  |  |  |  |  | 1,789 |
Outstanding at September 27, 2014 |  |  | 871 |  |  |  | 6.89 |  |  |  | - |  |  |  | 20.50 |  |  |  | 14.23 |  |  |  |  |  |  |  |  |
Granted |  |  | 134 |  |  |  | 18.05 |  |  |  | - |  |  |  | 21.96 |  |  |  | 19.89 |  |  |  |  |  |  |  |  |
Exercised |  |  | (27 | ) |  |  | 6.89 |  |  |  | - |  |  |  | 11.15 |  |  |  | 9.17 |  |  |  |  |  |  |  | 328 |
Forfeited |  |  | (55 | ) |  |  | 9.16 |  |  |  | - |  |  |  | 21.96 |  |  |  | 15.37 |  |  |  |  |  |  |  |  |
Outstanding at October 3, 2015 |  |  | 923 |  |  |  | 7.55 |  |  |  | - |  |  |  | 21.96 |  |  |  | 15.14 |  |  |  | 6.06 |  |  |  | 2,188 |
Vested and anticipated to vest in future at October 3, 2015 |  |  | 918 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 15.11 |  |  |  | 6.04 |  |  |  | 2,188 |
Exercisable at October 3, 2015 |  |  | 667 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 13.52 |  |  |  | 4.94 |  |  |  | 2,188 |
Schedule of RSU Grants and Compensation Expense [Table Text Block] |
|  | Year Ended |
|  | October 3, |  |  | September 27, |  |  | September 28, |
(In thousands) |  | 2015 |  |  | 2014 |  |  | 2013 |
Restricted stock unit grants: |  |  |  |  |  |  |  |  |  |  |  |
Units |  |  | 62 |  |  |  | 64 |  |  |  | 73 |
Market value |  | $ | 1,253 |  |  | $ | 1,252 |  |  | $ | 1,225 |
Compensation expense |  |  | 1,291 |  |  |  | 1,522 |  |  |  | 1,210 |
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] |
|  |  |  |  |  | Weighted |
|  | Restricted |  |  | Average |
|  | Stock Units |  |  | Grant Date |
(Unit amounts in thousands) |  | Outstanding |  |  | Fair Value |
Balance, September 29, 2012 |  |  | 293 |  |  | $ | 10.74 |
Granted |  |  | 73 |  |  |  | 16.77 |
Forfeited |  |  | (6 | ) |  |  | 10.72 |
Released |  |  | (139 | ) |  |  | 10.00 |
Balance, September 28, 2013 |  |  | 221 |  |  |  | 13.20 |
Granted |  |  | 64 |  |  |  | 19.61 |
Released |  |  | (88 | ) |  |  | 12.33 |
Balance, September 27, 2014 |  |  | 197 |  |  |  | 15.68 |
Granted |  |  | 62 |  |  |  | 20.33 |
Forfeited |  |  | (13 | ) |  |  | 17.52 |
Released |  |  | (89 | ) |  |  | 12.86 |
Balance, October 3, 2015 |  |  | 157 |  |  |  | 18.96 |

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