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Note 4 - Net Income Per Share
6 Months Ended
Sep. 30, 2018
Notes to Financial Statements  
Earnings Per Share [Text Block]
 
NOTE
4.
NET INCOME PER SHARE

     Net income per basic share is computed based on the weighted-average number of common shares issued and outstanding during each period. Net income per diluted share amounts assume exercise of all stock options. The following tables show the components of diluted shares:
 
   
Quarter Ended Sept. 30
 
   
2018
   
2017
 
Weighted average common shares outstanding – basic
   
4,843,032
     
4,841,010
 
Dilutive effect of stock options
   
9,612
     
4,622
 
Shares used in computing net income per share – diluted
   
4,852,644
     
4,845,632
 
 
   
Six Months Ended Sept. 30
 
   
2018
   
2017
 
Weighted average common shares outstanding – basic
   
4,842,524
     
4,841,010
 
Dilutive effect of stock options
   
8,548
     
4,897
 
Shares used in computing net income per share – diluted
   
4,851,072
     
4,845,907