Note 4 - Net Income Per Share (Tables)

6 Months Ended

Sep. 30, 2016

Notes Tables

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

	Quarter Ended Sept. 30
	2016		2015
Weighted average common shares outstanding – basic		4,835,564		4,855,398
Dilutive effect of stock options		2,255		2,735
Shares used in computing net income per share – diluted		4,837,819		4,858,133

	Six Months Ended Sept. 30
	2016		2015
Weighted average common shares outstanding – basic		4,835,289		4,858,557
Dilutive effect of stock options		2,004		3,874
Shares used in computing net income per share – diluted		4,837,293		4,862,431