Note 4 - Net Income Per Share (Tables)

6 Months Ended

Sep. 30, 2017

Notes Tables

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

	Quarter Ended Sept. 30
	2017		2016
Weighted average common shares outstanding – basic		4,841,010		4,835,564
Dilutive effect of stock options		4,622		2,255
Shares used in computing net income per share – diluted		4,845,632		4,837,819

	Six Months Ended Sept. 30
	2017		2016
Weighted average common shares outstanding – basic		4,841,010		4,835,289
Dilutive effect of stock options		4,897		2,004
Shares used in computing net income per share – diluted		4,845,907		4,837,293