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8. Stockholder's Equity (Details Narrative) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Sale of common stock | $ 2,281,599 | $ 3,041,918 | $ 3,492,302
Unregistered common stock sold | 1,734,667 |  | 350,000
Unregistered common stock value | 462,476 | 1,160,217 | 799,522
Stock Issued for services, value | 451,232 |  |
Stock issuance expenses | 211,818 | 230,004 |
Prepaid directors’ fees | 9,410 |  |
Preferred stock autorized | 10,000,000 | 10,000,000 |
Preferred stock par value | $ 0.01 | $ 0.01 |
Preferred shares outstanding | 0 | 0 |
Series B Preferred Stock [Member] |  |  |
Cumulative dividends in arrear | 135,000 | 127,500 |
Dividend per share |  | $ 2.50 |
Series D Preferred Stock [Member] |  |  |
Cumulative dividends in arrear | 378,069 | 336,920 |
Preferred shares outstanding | 1,751,005 |  |
Liquidation preference value of preferred stock series D | 4,755,069 | 4,377,513 |
Director [Member] |  |  |
Unregistered common stock sold |  |  | 130,000
Unregistered common stock value |  |  | 67,600
Common stock not issued |  | 95,835 |
Common stock not issued value |  | $ 230,004 |
Common Stock [Member] | Herbert Denton [Member] |  |  |
Stock Issued for services, shares | 100,000 |  |
Common Stock [Member] | Director [Member] |  |  |
Stock Issued for services, shares | 165,827 |  |

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