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Note 6. Stock Options (Details 1) (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 | Sep. 30, 2013 Total | Dec. 31, 2012 Total
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Exercise Price Range |  |  |  | $0.01 - $1.00 |  | $1.01 - $2.00 |  | $2.01 - $3.00 |  | $3.01 - $4.00 |  | $4.01 - $8.00 |  | $8.01 - $8.25 |  |  |  |  |
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 | 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 | 7 years 4 months 28 days | 7 years 7 months 4 days
Weighted Average 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 | $ 4.21 |
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 | 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 Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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