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Financial Instruments, Off-Balance Sheet Risks and Contingencies (Additional Information) (Details) (USD $)
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Dec. 31, 2013
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Dec. 31, 2012
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|---|---|---|
| Carrying Amounts and Fair Values of Financial Instruments or Liabilities [Line Items] | ||
| Cash investments in money market funds | $ 51,156,064 | $ 86,156,064 |
| Deposits in domestic and foreign financial institutions | $ 11,776,288 | $ 12,085,820 |