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Note 6. Schedule of Stock Options Outstanding (Details 2) (USD $) | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Sep. 30, 2013 Option 1 | Dec. 31, 2012 Option 1 | Sep. 30, 2013 Option 2 | Dec. 31, 2012 Option 2 | Sep. 30, 2013 Option 3 | Dec. 31, 2012 Option 3 | Sep. 30, 2013 Option 4 | Dec. 31, 2012 Option 4 | Sep. 30, 2013 Option 5 | Dec. 31, 2012 Option 5 | Sep. 30, 2013 Option 6 | Dec. 31, 2012 Option 6 | Dec. 31, 2012 Option 7 | Dec. 31, 2012 Option 8 | Dec. 31, 2012 Option 9 | Sep. 30, 2013 Total | Dec. 31, 2012 Total
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Exercise Price |  |  |  | $ 0.01 | $ 0.01 | $ 1.73 | $ 1.70 | $ 2.41 | $ 1.87 | $ 3.33 | $ 2.10 | $ 7.76 | $ 2.30 | $ 8.25 | $ 2.31 | $ 2.81 | $ 3.00 | $ 3.33 | $ 4.21 |
Number of Options Outstanding | 220,596 | 127,500 | 100,000 | 27,300 | 35,000 | 16,750 | 15,000 | 111,276 | 3,000 | 20,800 | 57,596 | 60,000 | 15,000 | 40,000 | 16,500 | 45,000 | 5,000 | 28,500 | 276,126 | 220,596
Weighted Average Remaining Contractual Life (in Years) |  |  |  | 8 years 3 months 22 days | 9 years 5 days | 7 years 7 months 24 days | 8 years 4 months | 6 years 5 months 16 days | 8 years 4 months | 8 years 6 months | 7 years 6 months 1 day | 9 years 11 months 26 days | 8 years 9 months 7 days | 4 years 10 months 20 days | 7 years 6 months 1 day | 5 years 6 days | 9 years 7 months 5 days | 9 years 2 months 5 days | 7 years 4 months 28 days | 7 years 7 months 4 days
Number of Options Exercisable |  |  |  | 27,300 | 35,000 | 16,750 | 15,000 | 72,526 | 3,000 | 20,800 | 35,096 | 3,751 | 15,000 | 2,500 | 16,500 | 10,000 | 5,000 | 0 | 143,627 | 134,596

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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + 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)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + 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)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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