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Cash Flow
9 Months Ended
Jan. 31, 2012
Cash Flow [Abstract]  
Cash Flow
NOTE I--CASH FLOW

Supplemental disclosures of cash flow information:

   
Nine Months Ended
 
   
January 31
 
(in thousands)
 
2012
   
2011
 
Cash paid during the period for:
           
Interest
  $ 362     $ 373  
Income taxes
  $ 206     $ 216