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COMPUTATION OF NET INCOME PER SHARE (Tables)
 9 Months Ended
Oct. 31, 2013
COMPUTATION OF NET INCOME PER SHARE [Abstract]  
Computation of basic and diluted net income per share
The following table sets forth the computation of basic and diluted net income per share:

 
 
Three Months Ended
  
Nine Months Ended
 
 
 
October 31,
  
October 31,
 
 
 
2013
  
2012
  
2013
  
2012
 
 
 
(in thousands, except per share data)
 
Net income
 
$
2,049
  
$
1,825
  
$
2,040
  
$
4,628
 
Less: Dividends declared
  
(1,090
)
  
(1,060
)
  
(3,267
)
  
(3,247
)
Undistributed net income (loss)
 
$
959
  
$
765
  
$
(1,227
)
 
$
1,381
 
 
                
Net income per share – Class A Common Stock
                
Dividends declared
 
$
901
  
$
873
  
$
2,700
  
$
2,683
 
Allocation of undistributed net income (loss)
  
793
   
630
   
(1,012
)
  
1,139
 
Net income attributable to Class A common stock
 
$
1,694
  
$
1,503
  
$
1,688
  
$
3,822
 
 
                
Weighted average shares of Class A common stock outstanding—basic
  
12,526
   
12,561
   
12,477
   
12,634
 
Weighted average potential shares of Class A common stock
  
464
   
455
   
453
   
473
 
Weighted average shares of Class A common stock and potential common shares outstanding—diluted
  
12,990
   
13,016
   
12,930
   
13,107
 
 
                
Basic net income per Class A common share
 
$
0.14
  
$
0.12
  
$
0.14
  
$
0.30
 
Diluted net income per Class A common share
 
$
0.13
  
$
0.12
  
$
0.13
  
$
0.29
 
 
                
Net income per share – Class B Common Stock
                
Dividends declared
 
$
189
  
$
187
  
$
567
  
$
564
 
Allocation of undistributed net income (loss)
  
166
   
135
   
(215
)
  
242
 
Net income attributable to Class B common stock
 
$
355
  
$
322
  
$
352
  
$
806
 
 
                
Weighted average shares of Class B common stock outstanding—basic
  
3,149
   
3,157
   
3,146
   
3,163
 
Weighted average potential shares of Class B common stock
  
86
   
103
   
88
   
109
 
Weighted average shares of Class B common stock and potential common shares outstanding—diluted
  
3,235
   
3,260
   
3,234
   
3,272
 
 
                
Basic net income per Class B common share
 
$
0.11
  
$
0.10
  
$
0.11
  
$
0.25
 
Diluted net income per Class B common share
 
$
0.11
  
$
0.10
  
$
0.11
  
$
0.25
 
Number of potential common shares not included in the calculation of diluted earnings per share
The following table sets forth the number of potential common shares not included in the calculation of diluted earnings per share because their effects were anti-dilutive:
 
 
 
Three Months Ended
  
Nine Months Ended
 
 
 
October 31,
  
October 31,
 
 
 
2013
  
2012
  
2013
  
2012
 
 
 
(in thousands)
  
(in thousands)
 
Class A
  
2,654
   
2,484
   
2,530
   
2,289
 
Class B
  
354
   
384
   
363
   
369