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4. Intangible Assets, net (Details) (USD $)
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Dec. 31, 2012
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Dec. 31, 2011
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|---|---|---|
| Intangible Assets Net Details | ||
| PCT Patents | $ 778,156 | $ 778,156 |
| Less accumulated amortization | (693,026) | (644,394) |
| Net book value | $ 85,130 | $ 133,762 |
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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