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Note 9 - Stock-Based Compensation (Tables) | 12 Months Ended
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Sep. 27, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block] |
|  | Year Ended |
|  | September 27, |  |  | September 28, |  |  | September 29, |
(In thousands) |  | 2014 |  |  | 2013 |  |  | 2012 |
Stock options: |  |  |  |  |  |  |  |  |  |  |  |
Compensation expense |  | $ | 1,139 |  |  | $ | 951 |  |  | $ | 909 |
Excess tax benefits |  |  | (575 | ) |  |  | (660 | ) |  |  | - |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|  | Year Ended |
|  | September 2 7, |  |  | Septem ber 28, |  |  | September 29, |
|  | 201 4 |  |  | 201 3 |  |  | 201 2 |
Expected term (in years) |  |  | 5.08 |  |  |  | 6.00 |  |  |  | 6.00 |
Risk-free interest rate |  |  | 0.38 | % |  |  | 1.40 | % |  |  | 1.17 | %
Expected volatility |  |  | 39.57 | % |  |  | 47.32 | % |  |  | 52.97 | %
Expected dividend yield |  |  | 0.60 | % |  |  | 0.72 | % |  |  | 1.06 | %
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] |
|  |  |  |  |  | Exercise Price |  |  | Contractual |  |  |  |
|  |  |  |  |  | Per Share |  |  | Term - |  |  | Aggregate |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  | Weighted |  |  | Intrinsic |
(Share amounts in thousands) |  | Options Outstanding |  |  | Range |  |  | Weighted Average |  |  | Average (years) |  |  | Value (in thousands) |
Outstanding at October 1, 2011 |  |  | 994 |  |  | $ | 0.18 | - | $ | 20.27 |  |  | $ | 10.89 |  |  |  |  |  |  |  |  |
Granted |  |  | 178 |  |  |  | 10.23 | - |  | 13.06 |  |  |  | 11.44 |  |  |  |  |  |  |  |  |
Exercised |  |  | (12 | ) |  |  | 0.18 | - |  | 0.18 |  |  |  | 0.18 |  |  |  |  |  |  | $ | 147 |
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 |  |  |  | 6.41 |  |  |  | 5,866 |
Vested and anticipated to vest in future at September 27, 2014 |  |  | 869 |  |  |  |  |  |  |  |  |  |  | 14.23 |  |  |  | 6.40 |  |  |  | 5,858 |
Exercisable at September 27, 2014 |  |  | 594 |  |  |  |  |  |  |  |  |  |  | 12.85 |  |  |  | 5.23 |  |  |  | 4,826 |
Schedule of RSU Grants and Compensation Expense [Table Text Block] |
|  | Year Ended |
|  | September 27, |  |  | September 28, |  |  | September 29, |
(In thousands) |  | 2014 |  |  | 2013 |  |  | 2012 |
Restricted stock unit grants: |  |  |  |  |  |  |  |  |  |  |  |
Units |  |  | 64 |  |  |  | 73 |  |  |  | 99 |
Market value |  | $ | 1,252 |  |  | $ | 1,225 |  |  | $ | 1,165 |
Compensation expense |  |  | 1,522 |  |  |  | 1,210 |  |  |  | 1,299 |
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, October 1, 2011 |  |  | 328 |  |  | $ | 10.25 |
Granted |  |  | 99 |  |  |  | 11.77 |
Released |  |  | (134 | ) |  |  | 10.30 |
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 |

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- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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