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Note 6 - Net Income Per Share (Tables)
6 Months Ended
Sep. 30, 2015
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
 
 
Three
M
onths
E
nded
September 30
,
 
 
Six
M
onths
E
nded
September 30
,
 
 
 
2015
 
 
201
4
 
 
2015
 
 
2014
 
Net income available for shareholders
  $ 1,752     $ 3,060     $ 4,058     $ 4,941  
Weighted average outstanding shares of common stock
    3,598       3,508       3,587       3,504  
Dilutive effect of stock options
    144       132       128       144  
Common stock and equivalents
    3,742       3,640       3,715       3,648  
                                 
Net income per share:
                               
Basic
  $ 0.49     $ 0.87     $ 1.13     $ 1.41  
Diluted
    0.47       0.84       1.09       1.35