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Note 2 - Summary of Significant Accounting Policies (Detail)
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Mar. 31, 2013
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| Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares) | 3,704,854 |
| X | ||||||||||
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- Definition
The specified number of securities that each class of warrants or rights outstanding give the holder the right but not the obligation to purchase from the issuer at a specific price, on or before a certain date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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