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Note 6 - Stock Repurchase Program (Detail) - Stock Repurchase Program (USD $)
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3 Months Ended | 69 Months Ended | 1 Months Ended | 1 Months Ended | 3 Months Ended | |
|---|---|---|---|---|---|---|
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Dec. 31, 2012
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Sep. 30, 2012
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Oct. 31, 2012
April 1, 2012 - April 30, 2012 [Member]
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Nov. 30, 2012
May 1, 2012 - May 31, 2012 [Member]
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Dec. 31, 2012
June 1, 2012 - June 30, 2012 [Member]
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Dec. 31, 2012
Total [Member]
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| Total Number of Shares Purchased | 25,000 | 1,958,829 | 0 | 25,000 | 1,983,829 | |
| Average Price Paid Per Share (in Dollars per share) | $ 7.12 | $ 3.41 | $ 0 | $ 7.12 | $ 3.45 | |
| Aggregate Number of Shares Purchased as Part of Publicly Announced Program | 25,000 | 1,958,829 | 1,958,829 | 1,958,829 | 1,983,829 | 1,983,829 |
| Maximum Number of Shares that May Yet be Purchased Under the Program | 1,041,171 | 1,041,171 | 1,041,171 | 1,016,171 | 1,016,171 |
| X | ||||||||||
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- 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 | ||||||||||
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- Definition
Total cost of shares repurchased divided by the total number of shares repurchased. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of shares held for each class of treasury stock. 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 during the period and are being held in treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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