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Note 5 - Stock-Based Compensation (Detail) - Tax Short-Fall From Share-Based Payment Arrangements (USD $) In Thousands, unless otherwise specified | 3 Months Ended
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Mar. 31, 2013 | Mar. 31, 2012
Short-fall of tax deductions in excess of grant-date fair value | $ (69) | $ (565)
Benefit of tax deductions on grant-date fair value | 596 | 663
Total benefit of tax deductions | $ 527 | $ 98

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- Definition Total Benefit Of Tax Deductions + References No definition available. + Details
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- Definition Amount of excess tax benefit (tax deficiency) that arises when compensation cost from non-qualified equity-based compensation recognized on the entity's tax return exceeds (is less than) compensation cost from equity-based compensation recognized in financial statements. Excess tax benefit (tax deficiency) reduces (increases) net cash provided by operating activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 20 -Section 55 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=6576910&loc=d3e11374-113907 + Details
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