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Note 9 - Earnings Per Share (Tables)
6 Months Ended
Sep. 30, 2020
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
  

Three Months Ended September 30,

  

Six Months Ended September 30,

 
  

2020

  

2019

  

2020

  

2019

 

Net income available for shareholders

 $2,679  $3,172  $3,896  $7,834 

Weighted average outstanding shares of common stock

  5,110   4,155   4,821   4,029 

Dilutive effect of stock options

  119   156   125   166 

Dilutive effect of non-vested shares

  12   10   12   10 

Fully diluted shares

  5,241   4,321   4,958   4,205 
                 

Basic

 $0.52  $0.76  $0.81  $1.94 

Diluted

 $0.51  $0.73  $0.79  $1.86 
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
  

Three Months Ended September 30,

  

Six Months Ended September 30,

 
  

2020

  

2019

  

2020

  

2019

 

Assumed conversion of convertible debt

  608   331   608   166 

Stock awards that were anti-dilutive

  63   29   49   19 

Stock awards subject to performance conditions

  21   18   19   15 

Total stock awards excluded from diluted EPS

  692   378   676   200