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9. Derivative Instruments (Details-Reconciliation of derivatives) - USD ($) | Sep. 30, 2015 | Dec. 31, 2014
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Derivative Instruments and Hedging Activities Disclosure [Abstract] |  |
Derivative assets | $ 2,693,561 | $ 3,571,803
Noncurrent derivative assets | 0 | 4,007,942
Net amount of assets on the balance sheet | 2,693,561 | 7,579,745
Current portion of derivative liabilities | 0 | 0
Derivative liabilities | 0 | 0
Net amounts of liabilities on the balance sheet | 0 | 0
Total derivative assets (liabilities), net | $ 2,693,561 | $ 7,579,745

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