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Note P - Net Income Per Share of Common Stock | 3 Months Ended
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Mar. 31, 2012
Earnings Per Share [Text Block] | Note P – Net Income Per Share of Common Stock Basic net income per share is based on the weighted average number of shares of common stock outstanding during the period, which does not include unvested restricted stock subject to forfeiture. Diluted net income per share reflects: a) the potential dilution assuming shares of common stock were issued upon the exercise of outstanding in-the-money options and the proceeds thereof were used to purchase shares of the Company’s common stock at the average market price during the period, and b) the vesting of granted nonvested restricted stock awards for which the assumed proceeds upon vesting are deemed to be the amount of compensation cost not yet recognized attributable to future services using the treasury stock method, to the extent dilutive. For the three months ended March 31, 2012 and 2011, options exercisable into approximately 54,000 and 174,000 shares of common stock, respectively, have been excluded in the calculation of diluted income per share as the result would have been antidilutive. For the quarters ended March 31, 2012 and 2011, the unvested restricted stock awards were dilutive.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6920599&loc=d3e1252-109256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=6945512&loc=d3e4984-109258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6920599&loc=d3e1278-109256 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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