Annual report pursuant to section 13 and 15(d)

Note 2 - Summary of Significant Accounting Policies (Detail) - Anti-dilutive Securities

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Note 2 - Summary of Significant Accounting Policies (Detail) - Anti-dilutive Securities
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Antidilutive securities 19,650,325 6,649,184 5,196,141
Stock Options [Member]
     
Antidilutive securities 6,432,127 3,679,977 3,762,477
Warrant [Member]
     
Antidilutive securities 8,763,836 1,922,944 435,986
Convertible Debt Securities [Member]
     
Antidilutive securities 4,454,362 1,046,263 997,678