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Note 13 - Related Party Transactions (Details) (USD $)
 12 Months Ended 150 Months Ended 2 Months Ended 12 Months Ended 9 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2006
Dec. 31, 2005
Dec. 31, 2004
Dec. 31, 2013
May 14, 2013
Apr. 30, 2013
Jan. 17, 2013
Jan. 31, 2012
Members of Board of Directors and Management [Member]
Dec. 31, 2013
Ongoing Patent Cost Reimbursements [Member]
Dec. 31, 2012
Ongoing Patent Cost Reimbursements [Member]
Dec. 31, 2011
Ongoing Patent Cost Reimbursements [Member]
Sep. 30, 2012
Research Agreements [Member]
Dec. 31, 2013
Research Agreements [Member]
Dec. 31, 2011
Research Agreements [Member]
Dec. 31, 2012
Consulting Agreement [Member]
Dec. 31, 2011
Consulting Agreement [Member]
Note 13 - Related Party Transactions (Details) [Line Items]                                      
Related Party Transaction, Expenses from Transactions with Related Party                       $ 98,042 $ 89,885 $ 249,907 $ 552,403 $ 252,478 $ 1,172,758 $ 24,000 $ 24,000
Stock Issued During Period, Shares, New Issues (in Shares)                     380,954                
Proceeds from Issuance of Common Stock $ 1,643,333 $ 310,160 $ 404,410 $ 500,000 $ 1,500,000 $ 750,000 $ 17,479,801       $ 255,239                
Class of Warrant or Right, Purchase Period                     5 years                
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)                     571,432                
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Share) 2.07 0.75         2.07 0.50 0.60 0.60 1.00