Note 2 - Earnings per Share

3 Months Ended

Mar. 31, 2015

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]

2. Earnings Per Share. Basic and diluted earnings per share for the three months ended March 31, 2015 and 2014 are based on weighted average shares of common stock outstanding. Diluted earnings per share include the potentially dilutive effects of the Company’s stock-based compensation plans. For the three months ended March 31, 2015 and 2014, there were 20,159 and 18,753 stock-based compensation shares, respectively, that were dilutive because their exercise prices were less than the average market price of the Company’s common stock.