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Note 3 - Stock Based Compensation (Detail) - Summary of the Award Activity of the Stock Option Plans (USD $)
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9 Months Ended |
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Mar. 31, 2013
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| Outstanding at July 1, 2012 | 1,362,290 |
| Outstanding at July 1, 2012 (in Dollars per share) | $ 10.63 |
| Outstanding at March 31, 2013 | 1,164,340 |
| Outstanding at March 31, 2013 (in Dollars per share) | $ 10.75 |
| Exercisable at March 31, 2013 | 1,071,790 |
| Exercisable at March 31, 2013 (in Dollars per share) | $ 10.64 |
| Granted | 0 |
| Granted (in Dollars per share) | $ 0 |
| Exercised | (186,575) |
| Exercised (in Dollars per share) | $ 9.69 |
| Forfeited or expired | (11,375) |
| Forfeited or expired (in Dollars per share) | $ 13.41 |
| X | ||||||||||
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- Definition
The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Weighted average price of options that were either forfeited or expired. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Net number of share options (or share units) granted during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Weighted average price at which option holders acquired shares when converting their stock options into shares. No definition available.
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| X | ||||||||||
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- Definition
Weighted average price at which grantees can acquire the shares reserved for issuance on stock options awarded. No definition available.
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| X | ||||||||||
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- Definition
Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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