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Treasury Stock and Repurchase Program:
6 Months Ended
Oct. 31, 2011
Treasury Stock [Abstract]  
Treasury Stock and Repurchase Program:
Note 10 - Treasury Stock and Repurchase Program:
 
On January 20, 2011, the Company’s Board of Directors approved the repurchase of shares of the Company’s common stock, at such times and prices as management determined to be advisable up to an aggregate purchase price of $3,200,000. The repurchase authorization extends through January 15, 2012, unless further extended or earlier terminated by the Board of Directors.
 
Treasury stock, at cost, consists of the following:
 
                     
Aggregate
 
                     
Purchase
 
                     
Price
 
                     
Remaining
 
 
       
Total Average
   
Average Cost
   
Under the
 
(in thousands except for shares and cost per share)
 
Shares
   
Cost Assigned
   
per Share
   
Program
 
Balance as of April 30, 2011 (1)
    25,119     $ 444     $ 17.67     $ 3,110  
Purchases effected in open market during the three months ended:
                               
July 31, 2011
    11,700     158     $ 13.53     $ 2,952  
October 31, 2011
    66,800     788     $ 11.78     $ 2,165  
Balance as of October 31, 2011
    103,619     $ 1,390     $ 13.41          
 
(1) Includes the balance of 18,400 shares with a total average cost of $354,000 that were acquired prior to the repurchase program authorized in January 2011.