Derivative Instruments (Details 6) - USD ($)	Sep. 30, 2015	Dec. 31, 2014
Derivatives Assets and Liabilities Collateral Received by Counterparty
Net Amount of Unrealized Gain Presented in the Consolidated Statement of Financial Condition	$ 7,223,996	$ 11,368,245
Net Amount	7,223,996	11,368,245
Bank of America N.A.
Derivatives Assets and Liabilities Collateral Received by Counterparty
Net Amount of Unrealized Gain Presented in the Consolidated Statement of Financial Condition		207,217
Net Amount		207,217
Deutsche Bank AG
Derivatives Assets and Liabilities Collateral Received by Counterparty
Net Amount of Unrealized Gain Presented in the Consolidated Statement of Financial Condition	411,108
Net Amount	411,108
ED&F Man Capital Markets Inc
Derivatives Assets and Liabilities Collateral Received by Counterparty
Net Amount of Unrealized Gain Presented in the Consolidated Statement of Financial Condition	1,920,294
Net Amount	1,920,294
Jefferies Bache, LLC
Derivatives Assets and Liabilities Collateral Received by Counterparty
Net Amount of Unrealized Gain Presented in the Consolidated Statement of Financial Condition		4,107,099
Net Amount		4,107,099
SG Americas Securities, LLC
Derivatives Assets and Liabilities Collateral Received by Counterparty
Net Amount of Unrealized Gain Presented in the Consolidated Statement of Financial Condition	2,041,914	1,285,569
Net Amount	2,041,914	1,285,569
UBS Securities LLC
Derivatives Assets and Liabilities Collateral Received by Counterparty
Net Amount of Unrealized Gain Presented in the Consolidated Statement of Financial Condition	2,850,680	5,768,360
Net Amount	$ 2,850,680	$ 5,768,360