Note 4 - Net Income Per Share (Tables)

6 Months Ended

Sep. 30, 2015

Notes Tables

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

	Quarter Ended Sept. 30
	2015		2014
Weighted average common shares outstanding – basic		4,855,398		4,855,071
Dilutive effect of stock options		2,735		16,958
Shares used in computing net income per share – diluted		4,858,133		4,872,029

	Six Months Ended Sept. 30
	2015		2014
Weighted average common shares outstanding – basic		4,858,557		4,853,068
Dilutive effect of stock options		3,874		15,701
Shares used in computing net income per share – diluted		4,862,431		4,868,769