Note 3 - Basic and Diluted Shares (Tables)

6 Months Ended

Jun. 30, 2018

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,
	2018		2017		2018		2017
Basic and diluted		19,091,414		18,982,871		19,074,809		18,968,176
Potentially dilutive		27,500		27,500		27,500		27,500