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16. Income Tax (Details 3) (USD $) | Dec. 31, 2013 | Dec. 31, 2012
--- | --- | ---
Deferred tax assets (liabilities): |  |
Organization, start-up costs & intangible assets | $ 9,302,636 | $ 9,898,832
Stock-based compensation | 114,946 | 233,365
Property, plant and equipment deferred tax asset | (18,929,925) | (14,546,837)
Net operating loss carryforward | 49,139,117 | 38,790,667
Convertible debt | (5,325) | (9,382)
Credit carryforward | 1,500,000 | 1,500,000
Debt extinguishment | 2,535,989 | 1,822,458
Other, net | 1,544,586 | 839,555
Total deferred tax assets (liabilities) | 45,201,833 | 38,528,658
Less valuation allowance | (45,201,833) | (38,528,658)
Deferred tax assets (liabilities) | $ 0 | $ 0

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