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Sales-Type Leases (Tables)
3 Months Ended
Aug. 31, 2012
Sales Type Leases [Abstract]  
Minimum lease payments receivable and the net investment
                 
    August 31,
2012
    May 31,
2012
 

Gross minimum lease payments receivable

  $ 11,343     $ 12,284  

Less – unearned interest

    (542     (603
   

 

 

   

 

 

 

Net investment in sales-type lease receivables

  $ 10,801     $ 11,681  
   

 

 

   

 

 

 
Estimated future minimum lease payments receivable related to sales-type leases
         

Year ending May 31,

     

2013 (remaining)

  $ 5,619  

2014

    3,966  

2015

    1,473  

2016

2017

   

 

170

115

  

  

   

 

 

 
    $ 11,343