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Note 8 - Shareholders' Equity (Details) - Stock retired and repurchased (USD $)
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12 Months Ended | ||
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Jun. 30, 2013
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Jun. 30, 2012
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Jun. 30, 2011
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| Note 8 - Shareholders' Equity (Details) - Stock retired and repurchased [Line Items] | |||
| Common shares repurchased | 0 | 79,293 | 204,286 |
| Cost to repurchase common shares (in Dollars) | $ 1,350,000 | $ 5,377,000 | |
| Average price per share (in Dollars per share) | $ 0 | $ 17.02 | $ 13.65 |
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Accrual Basis [Member]
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| Note 8 - Shareholders' Equity (Details) - Stock retired and repurchased [Line Items] | |||
| Cost to repurchase common shares (in Dollars) | $ 0 | $ 1,349,557 | $ 2,787,777 |
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Final price paid per share for the purchase of the targeted number of shares, determined by an average market price over a fixed period of time. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash outflow to reacquire common stock during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of shares that have been repurchased and retired during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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