Note 4 - Net Income Per Share (Tables)

3 Months Ended

Jun. 30, 2018

Notes Tables

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

	Quarter Ended June 30
	2018		2017
Weighted average common shares outstanding – basic		4,842,010		4,841,010
Dilutive effect of stock options		8,469		5,241
Shares used in computing net income per share – diluted		4,850,479		4,846,251