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FAIR VALUE DISCLOSURES (Tables)
3 Months Ended
Apr. 30, 2013
FAIR VALUE DISCLOSURES [Abstract]  
Estimated fair value and carrying amount of debt
The estimated fair value and carrying amount of debt were as follows:

   
April 30,
  
January 31,
 
   
2013
  
2013
 
Fair value
 $2,863,430  $2,853,342 
Carrying amount
  2,535,880   2,639,507 

Summary of basis used to measure financial assets (liabilities) at fair value on a recurring basis
The following tables summarize the basis used to measure the Company's financial assets (liabilities) at fair value on a recurring basis in the consolidated balance sheets at April 30, 2013 and January 31, 2013.

      
Quoted Prices
       
      
in Active
       
      
Markets for
  
Significant
  
Significant
 
      
Identical
  
Observable
  
Unobservable
 
   
Balance at
  
Assets
  
Inputs
  
Inputs
 
   
April 30, 2013
  
(Level 1)
  
(Level 2)
  
(Level 3)
 
Cash and cash equivalents
 $39,398,603  $39,398,603  $-  $- 
Short-term investments
  512,325   512,325   -   - 
Cash surrender value -  life insurance policies
  1,422,796   -   1,422,796   - 
Interest rate swap agreement
  (303,026)  -   (303,026)  - 
   $41,030,698  $39,910,928  $1,119,770  $- 

      
Quoted Prices
       
      
in Active
       
      
Markets for
  
Significant
  
Significant
 
      
Identical
  
Observable
  
Unobservable
 
   
Balance at
  
Assets
  
Inputs
  
Inputs
 
   
January 31, 2013
  
(Level 1)
  
(Level 2)
  
(Level 3)
 
Cash and cash equivalents
 $33,305,908  $33,305,908  $-  $- 
Short-term investments
  1,022,266   1,022,266   -   - 
Cash surrender value -  life insurance policies
  1,389,781   -   1,389,781   - 
Interest rate swap agreement
  (302,972 )  -   (302,972 )  - 
   $35,414,983  $34,328,174  $1,086,809  $-