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Note 6 - Subsequent Events (Detail)
0 Months Ended
Mar. 31, 2013
Apr. 10, 2013
Subsequent Event [Member]
Preferred Class A [Member]
Apr. 21, 2013
Subsequent Event [Member]
Apr. 04, 2013
Subsequent Event [Member]
Conversion of Stock, Shares Issued   14,707    
Class of Warrant or Right, Number of Securities Called by Warrants or Rights 3,704,854   149,595 2,059,307