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Note H - Weighted Average Shares Outstanding (Tables)
9 Months Ended
Jan. 31, 2019
Notes Tables  
Schedule of Weighted Average Number of Shares [Table Text Block]
    Three Months Ended
January 31,
  Nine Months Ended
January 31,
    2019   2018   2019   2018
                 
Weighted average shares outstanding-basic    
6,751,026
     
7,106,715
     
6,846,707
     
7,336,687
 
Dilutive options and restricted stock    
252,363
     
238,713
     
240,723
     
219,568
 
                                 
Weighted average shares outstanding-diluted    
7,003,389
     
7,345,428
     
7,087,430
     
7,556,255
 
                                 
Antidilutive securities not included:                                
Options    
120,000
     
270,750
     
80,000
     
307,750
 
Restricted stock    
-
     
-
     
-
     
11,333