Note 6 - Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2014

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Three Months Ended September 30,				Nine Months Ended September 30,
	2014		2013		2014		2013
Shares used in the calculation of basic earnings per share		14,758,781		13,682,449		14,626,933		13,534,334
Effect of dilutive securities:
Stock options, SARs, and RSAs		676,094		1,276,516		842,304		1,139,545
Diluted shares used in the calculation of earnings per share		15,434,875		14,958,965		15,469,237		14,673,879