Quarterly report pursuant to Section 13 or 15(d)

5. Stockholders' Deficit - Options and warrants outstanding and exercisable (Details)

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5. Stockholders' Deficit - Options and warrants outstanding and exercisable (Details) (USD $)
 9 Months Ended 12 Months Ended
Sep. 30, 2012
Dec. 31, 2011
Balance outstanding, Shares 6,284,001 4,286,953
Exercisable 6,112,335 4,114,792
Granted, Shares 4,198,720 2,274,151
Exercised, Shares    (41,103)
Expired, Shares (196,490) (161,000)
Forfeited, Shares (2,525,480) (75,000)
Balance outstanding, Shares 7,760,751 6,284,001
Exercisable 7,415,044 6,112,335
Stock options
    
Balance outstanding, Shares 1,508,500 1,605,603
Balance outstanding, Exercise Price 2.33 2.49
Granted, Shares 1,896,250 180,000
Granted, Exercise Price 0.81 1.00
Exercised, Shares    (41,103)
Exercised, Exercise Price   1.07
Expired, Shares (80,000) (161,000)
Expired, Exercise Price 3.08 2.78
Forfeited, Shares (1,644,500) (75,000)
Forfeited, Exercise Price 2.10 2.57
Balance outstanding, Shares 1,680,250 1,508,500
Balance outstanding, Exercise Price 0.81 2.33
Warrants
    
Balance outstanding, Shares 4,775,501 2,681,350
Balance outstanding, Exercise Price 1.35 2.24
Granted, Shares 2,302,470 2,094,151
Granted, Exercise Price 0.60 1.44
Exercised, Shares      
Exercised, Exercise Price      
Expired, Shares (116,490)   
Expired, Exercise Price 2.80   
Forfeited, Shares (880,980)   
Forfeited, Exercise Price 2.13   
Balance outstanding, Shares 6,080,501 4,775,501
Balance outstanding, Exercise Price 0.89 1.35