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COMPUTATION OF NET INCOME (LOSS) PER SHARE (Tables)
 3 Months Ended
Apr. 30, 2015
COMPUTATION OF NET INCOME (LOSS) PER SHARE [Abstract]  
Computation of basic and diluted net income (loss) per share
The following table sets forth the computation of basic and diluted net income (loss) per share:

  
Three Months Ended
April 30,
 
  
2015
  
2014
 
  
(in thousands except per share data)
 
Net income (loss)
 
$
549
  
$
(76
)
Less: Dividends declared
  
(1,299
)
  
(1,103
)
Undistributed net loss
 
$
(750
)
 
$
(1,179
)
         
Net income (loss) per share – Class A Common Stock
        
Dividends declared
 
$
1,107
  
$
912
 
Allocation of undistributed net loss
  
(639
)
  
(976
)
Net income (loss) attributable to Class A common stock
 
$
468
  
$
(64
)
         
Weighted average shares of Class A common stock outstanding—basic
  
15,262
   
12,628
 
Weighted average potential shares of Class A common stock
  
786
   
—
 
Weighted average shares of Class A common stock and potential common shares outstanding—diluted
  
16,048
   
12,628
 
         
Basic net income (loss) per Class A common share
 
$
0.03
  
$
(0.01
)
Diluted net income (loss) per Class A common share
 
$
0.03
  
$
(0.01
)
         
Net income (loss) per share – Class B Common Stock
        
Dividends declared
 
$
192
  
$
191
 
Allocation of undistributed net loss
  
(111
)
  
(203
)
Net income (loss) attributable to Class B common stock
 
$
81
  
$
(12
)
         
Weighted average shares of Class B common stock outstanding—basic
  
3,196
   
3,168
 
Weighted average potential shares of Class B common stock
  
83
   
—
 
Weighted average shares of Class B common stock and potential common shares outstanding—diluted
  
3,279
   
3,168
 
         
Basic net income (loss) per Class B common share
 
$
0.03
  
$
(0.00
)
Diluted net income (loss) per Class B common share
 
$
0.02
  
$
(0.00
)
Number of potential common shares not included in the calculation of diluted net income 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
April 30,
 
  
2015
  
2014
 
  
(in thousands)
 
Class A
  
326
   
2,778
 
Class B
  
60
   
371