| 
         Stock Repurchase Program (Details) (USD $) 除非另有规定,否则在数千次 | 12 Months Ended | ||
|---|---|---|---|
| 
         Jun. 30, 2014 | 
         Jun. 30, 2013 | 
         Jun. 30, 2012 | |
| Stock Repurchase Program | |||
| Shares available for repurchase | 2,000,000. | ||
| Total cost of repurchases | $ 240,843 | $ 273,254 | $ 261,150 | 
| 
         普通股票和资本超过票面价值,Shares | |||
| Stock Repurchase Program | |||
| Number of shares of common stock repurchased | 3,835,000 | 5,374,000 | 5,790,000 | 
| X | ||||||||||
| 
          - Details
           
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| X | ||||||||||
| 
          - Definition
           The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan. No definition available. 
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| X | ||||||||||
| 
          - Definition
           Number of shares that have been repurchased during the period and are being held in treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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| X | ||||||||||
| 
          - Definition
           Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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