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Note 6 - Net Income Per Share (Tables)
9 Months Ended
Dec. 31, 2016
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
 
 
Three
M
onths
E
nded
December 31
,
 
 
Nine
M
onths
E
nded
December 31
,
 
 
 
2016
 
 
201
5
 
 
2016
 
 
2015
 
Net income available for shareholders
  $
3,252
    $
2,597
    $
7,540
    $
7,178
 
Weighted average outstanding shares of common stock
   
3,688
     
3,614
     
3,668
     
3,596
 
Dilutive effect of stock options
   
180
     
172
     
167
     
162
 
Common stock and equivalents
   
3,868
     
3,786
     
3,835
     
3,758
 
                                 
Net income per share:
                               
Basic
  $
0.88
    $
0.72
    $
2.06
    $
2.00
 
Diluted
   
0.84
     
0.69
     
1.97
     
1.91