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Note 10 - Equity Incentive Plan (Details) - Stock Options and SAR’s Activity (USD $) | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012
Stock Options and SAR’s Activity [Abstract] |  |
Options and SAR's outstanding at beginning of year | 1,793,685 | 2,108,003
Options and SAR's outstanding at beginning of year (in Dollars per share) | $ 8.30 | $ 7.26
Options and SAR's outstanding at end of year | 1,513,326 | 1,793,685
Options and SAR's outstanding at end of year (in Dollars per share) | $ 9.14 | $ 8.30
Granted | 413,500 | 204,000
Granted (in Dollars per share) | $ 12.55 | $ 12.06
Cancelled | (243,724) | (212,749)
Cancelled (in Dollars per share) | $ 8.77 | $ 6.58
Expired | (9,928) | (7,714)
Expired (in Dollars per share) | $ 9.62 | $ 1.68
Exercised | (440,207) | (297,855)
Exercised (in Dollars per share) | $ 8.71 | $ 4.74

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- Definition Share Based Compensation Arrangement by Share Based Payment Award Options and Stock Appreciation Rights Forfeitures in Period + References No definition available. + Details
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- Definition Share Based Compensation Arrangement by Share Based Payment Award Options and Stock Appreciation Rights Grants in Period + References No definition available. + Details
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- Definition Share Based Compensation Arrangement by Share Based Payment Award Options And Stock Appreciation Rights Outstanding Number. + References No definition available. + Details
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- Details
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