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Property and Equipment (Tables)
3 Months Ended
Jul. 31, 2015
Property, Plant and Equipment [Abstract]  
Schedule of property and equipment

             
($ in thousands)   July 31,
2015
    April 30,
2015
 
Land   $ 726     $ 726  
Building and leasehold improvements     5,037       5,037  
Furniture and equipment     4,080       4,084  
      9,843       9,847  
Accumulated depreciation and amortization     (6,228 )     (6,157 )
Total property and equipment, net   $ 3,615     $ 3,690