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Note 10 - Earnings Per Share
 6 Months Ended
Jun. 30, 2015
Notes to Financial Statements  
Earnings Per Share [Text Block]
NOTE 10:     EARNINGS PER SHARE
 
Basic earnings per share are computed by dividing net earnings available to common shareholders (the numerator) by the weighted average number of common shares (the denominator) for the period presented. The computation of diluted earnings per share is similar to basic earnings per share, except that the denominator is increased to include the number of additional common shares that would have been outstanding if the potentially dilutive common shares had been issued.
 
Stock options to purchase 259,730 shares of common stock were outstanding and 147,230 were exercisable during the three and six months ended June 30, 2015. Stock options to purchase 173,730 shares were outstanding and 148,730 were exercisable during the three and six months ended June 30, 2014. For the three and six months ended June 30, 2015 and the three months ended June 30, 2014 all outstanding options were included in the diluted earnings per share calculation because the average market price was higher than the exercise price. However, none of the outstanding options were included in the earnings per share calculation for the six months ended June 30, 2014, as their effect would have been anti-dilutive.
 
The potentially dilutive common shares from warrants and options are calculated in accordance with the treasury stock method, which assumes that proceeds from the exercise of all warrants and options are used to repurchase common stock at market value. The amount of shares remaining after the proceeds are exhausted represents the potential dilutive effect of the securities.