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Treasury Stock and Repurchase Program (Tables)
9 Months Ended
Jan. 31, 2013
Treasury Stock [Abstract]  
Schedule of treasury stock, at cost
(in thousands except for shares and cost
per share)
Shares
Total Average
Cost Assigned
Average Cost per Share
Aggregate Purchase Price
Remaining Under the Program
Balance as of April 30, 2012 (1)(2)
103,619 $ 1,390 $ 13.41 $ -
Purchases effected in open market during the quarters ended :
October 31, 2012
3,440 30 8.84 $ 2,970
January 31, 2013
12,890 117 9.11 $ 2,853
Balance as of January 31, 2013
119,949 $ 1,537 $ 12.81

(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.
 
(2) Includes the balance of 85,219 shares with a total average cost of $1,036,000 that were acquired during the former repurchase program, which was authorized in January 2011 and expired in January 2012.