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INTANGIBLE ASSETS (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Intangible assets |  |  |
Intangible assets gross | $ 494,399 | $ 1,008,743 |
Accumulated amortization | (207,879) | (678,614) |
Intangible assets net | 286,520 | 330,129 |
Amortization period of license fee | 17 years |  |
Royalty fees | 2,691,887 | 2,643,209 | 2,940,948
Amortization expense | 71,532 | 43,934 | 43,440
Future amortization expense |  |  |
2013 | 14,559 |  |
2014 | 14,559 |  |
2015 | 14,559 |  |
2016 | 14,559 |  |
2017 | 14,559 |  |
License agreement |  |  |
Intangible assets |  |  |
Intangible assets gross |  | 500,000 |
Initial licensing fee | 500,000 |  |
Amortization period of license fee | 17 years |  |
Quarterly payments as a percentage of royalty fee on gross sales | 5.00% |  |
Royalty fees | 2,691,887 | 2,643,209 | 2,940,948
Royalty payable under the license agreement | 129,107 | 122,939 |
Gross sales upon which royalties are based | 53,837,732 | 52,864,158 | 58,795,279
Gross amount on which royalty is paid on litigation proceeds |  | 6,000,000 |
Trademarks and patents |  |  |
Intangible assets |  |  |
Intangible assets gross | $ 494,399 | $ 508,743 |

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- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable for royalties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph 5 -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph a -Article 7 + Details
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