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Supplemental disclosure of cash flow information (Tables) | 12 Months Ended
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Dec. 31, 2012
Supplemental Cash Flow Elements [Abstract] |
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] | Supplemental disclosure of cash flow information
|  | Year Ended December 31, |
|  | 2012 |  |  | 2011 |  |  | 2010 |
Interest paid in cash, net of capitalized interest of $246,851 in 2011 |  | $ | 670,042 |  |  | $ | 962,744 |  |  | $ | 1,381,829 |
Non-cash transactions: |  |  |  |  |  |  |  |  |  |  |  |
Transfers between inventory and property plant and equipment, net |  | $ | 508,107 |  |  | $ | (100,000 | ) |  | $ | - |
Note received for plant facility sold |  | $ | - |  |  | $ | - |  |  | $ | 3,670,963 |
Issuance of 21,686, 11,158 and 8,565, respectively, of common stock for services rendered |  | $ | 175,313 |  |  | $ | 104,443 |  |  | $ | 119,997 |
Issuance of 10,033, 7,455 and 5,379, respectively, of redeemable preferred stock for services rendered |  | $ | 77,856 |  |  | $ | 65,902 |  |  | $ | 67,130 |
Conversion of 2,629, 2,145 and 4,950, respectively, of redeemable preferred stock to common stock |  | $ | 1,577 |  |  | $ | 1,287 |  |  | $ | 2,970 |
Dividends declared but not paid |  | $ | 1,096,746 |  |  | $ | 1,094,334 |  |  | $ | 1,092,913 |

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- Definition Tabular disclosure of supplemental cash flow information for the periods presented. + References No definition available. + Details
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- Details
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