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Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) | 12 Months Ended
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Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2011
Exercise of stock options, shares | 97,840 | 26,500 | 32,000
Issuance of deferred shares, shares | 367,449 | 184,149 | 126,428
Employee Stock Purchase Plans, shares | 4,452 | 4,395 | 699
Open market purchase of treasury shares, shares |  | 886,503 |
Other treasury share purchases | 107,344 | 52,992 | 30,154

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