Note 4 - Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2018

Notes Tables

Schedule of Weighted Average Number of Shares [Table Text Block]

	For the Three
	Months Ended
	March 31,
	2018			2017
Weighted-average common shares outstanding		3,606,427			3,065,981
Average treasury stock shares		(386,165	)		(386,165	)
Weighted-average common shares and common stock equivalents used to calculate basic earnings per share		3,220,262			2,679,816
Additional common stock equivalents (stock options and restricted stock) used to calculate diluted earnings per share		17,807			12,199
Weighted-average common shares and common stock equivalents used to calculate diluted earnings per share		3,238,069			2,692,015