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Property and Equipment (Tables)
3 Months Ended
Jul. 31, 2012
Property, Plant and Equipment [Abstract]  
Schedule of property and equipment
 
 
   
July 31,
   
April 30,
 
($ in thousands) 
 
2012
   
2012
 
Land
  $ 726     $ 726  
Building and leasehold improvements
    7,283       7,283  
Furniture and equipment
    10,970       10,955  
      18,979       18,964  
Accumulated depreciation and amortization
    (15,178 )     (15,110 )
Total property and equipment, net
  $ 3,801     $ 3,854