Note 4 - Net Income Per Share (Tables)

9 Months Ended

Dec. 31, 2019

Notes Tables

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

	Quarter Ended Dec. 31
	2019		2018
Weighted average common shares outstanding – basic		4,846,010		4,845,010
Dilutive effect of stock options		1,426		5,497
Shares used in computing net income per share – diluted		4,847,436		4,850,507

	Nine Months Ended Dec. 31
	2019		2018
Weighted average common shares outstanding – basic		4,846,010		4,843,355
Dilutive effect of stock options		2,496		6,765
Shares used in computing net income per share – diluted		4,848,506		4,850,120