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8. Outstanding Warrants (Details) (USD $) | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012
Number of Outstanding, Ending | 9,127,497 | 7,524,834
Weighted Average Exercise Price Outstanding, Ending | $ 0.49 | $ 0.59
Warrants |  |
Number Outstanding, Beginning | 1,806,923 | 1,428,590
Number of Warrants Granted | 5,818,439 | 2,555,000
Number of Warrants Exercised | (2,638,636) | (1,432,667)
Number of Warrants Expired | (289,002) | (1,511,902)
Number of Outstanding, Ending | 4,697,724 | 1,806,923
Weighted Average Exercise Price Outstanding, Beginning | $ 0.27 | $ 0.35
Weighted Average Exercise Price Granted | $ 0.26 | $ 0.001
Weighted Average Exercise Price Exercised | $ 0.01 | $ 0.001
Weighted Average Exercise Price Expired | $ 1.18 | $ 3
Weighted Average Exercise Price Outstanding, Ending | $ 0.34 | $ 0.27
Weighted Average Remaining Contractual Life (in years) Outstanding, Beginning | 2 years 8 months 8 days | 4 years 29 days
Weighted Average Remaining Contractual Life (in years) Outstanding, Ending | 4 years 10 months 6 days | 2 years 8 months 8 days

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- Definition For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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