Quarterly report pursuant to Section 13 or 15(d)

10. STOCK OPTIONS AND WARRANTS (Details 3)

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10. STOCK OPTIONS AND WARRANTS (Details 3) (WarrantMember, USD $)
3 Months Ended 12 Months Ended
Mar. 31, 2013
Dec. 31, 2012
WarrantMember
   
Number of Shares    
Number of shares - beginning balance 10,830,416 14,921,920
Number of shares - exercised   (3,115,390)
Number of shares - cancelled or expired (191,891) (976,114)
Number of shares - ending balance 10,638,525 10,830,416
Weighted Average Price Per Share    
Weighted average price per share - beginning balance $ 0.45 $ 0.50
Weighted average price per share - exercised   $ 0.13
Weighted average price per share - cancelled or expired $ 3.00 $ 2.20
Weighted average price per share - ending balance $ 0.40 $ 0.45