Note 3 - Basic and Diluted Shares (Tables)

6 Months Ended

Jun. 30, 2017

Notes Tables

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2017		2016		2017		2016
Basic and diluted		18,982,871		18,928,999		18,968,176		18,903,643
Potentially dilutive		27,500		26,873		27,500		26,873