Note 4 - Net Income Per Share (Tables)

9 Months Ended

Dec. 31, 2016

Notes Tables

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

	Quarter Ended Dec. 31
	2016		2015
Weighted average common shares outstanding – basic		4,836,336		4,844,845
Dilutive effect of stock options		3,441		2,125
Shares used in computing net income per share – diluted		4,839,777		4,846,970

	Nine Months Ended Dec. 31
	2016		2015
Weighted average common shares outstanding – basic		4,835,639		4,853,970
Dilutive effect of stock options		2,176		3,133
Shares used in computing net income per share – diluted		4,837,815		4,857,103