9. Stock Options and warrants (Details 1) (USD $)
|
12 Months Ended | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2012
$ 0.21 - $ 0.99 [Member]
|
Dec. 31, 2012
$ 1.00 - $ 1.99 [Member]
|
Dec. 31, 2012
Stock Options
|
Dec. 31, 2011
Stock Options
|
Dec. 31, 2010
Stock Options
|
Dec. 31, 2009
Stock Options
|
Dec. 31, 2008
Stock Options
|
Dec. 31, 2007
Stock Options
|
Dec. 31, 2006
Stock Options
|
Dec. 31, 2005
Stock Options
|
Dec. 31, 2004
Stock Options
|
Dec. 31, 2003
Stock Options
|
|
Shares | 27,196,679 | 81,419 | 27,278,098 | 24,067,982 | 4,837,488 | 4,851,225 | 4,601,225 | 4,188,445 | 3,999,559 | 6,508,561 | 14,422,652 | 13,250,000 |
Life (Years) | 8 years 1 month 6 days | 2 years 9 months 19 days | ||||||||||
Weighted Average Exercise Price | $ 0.27 | $ 1.36 | $ 0.27 | $ 0.30 | $ 0.52 | $ 0.52 | $ 0.53 | $ 0.95 | $ 0.99 | $ 0.53 | $ 0.18 | $ 0.11 |
Shares | 9,616,679 | 81,419 | 9,698,098 | |||||||||
Weighted Average Exercise Price | $ 0.29 | $ 1.36 | $ 0.30 |