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Summary of Significant Accounting Policies - Derivative Financial Instruments (Details) (Interest Rate Swap [Member], USD $)
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1 Months Ended | |||
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Dec. 31, 2007
Interest Rate Swap Contract 1 [Member]
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Dec. 31, 2007
Interest Rate Swap Contract 2 [Member]
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Mar. 31, 2010
Interest Rate Swap Contract 3 [Member]
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Jul. 31, 2011
Interest Rate Swap Contract 4 [Member]
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| Derivative [Line Items] | ||||
| Initial notional amount of interest rate swaps | $ 13,080,607 | $ 3,256,395 | $ 27,900,000 | $ 38,571,429 |
| Interest rate swaps, variable to fixed interest rates | 5.40% | 5.30% | 6.99% | 1.965% |
| Term of interest rate swap contract | 14 years | 5 years | ||
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- Details
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- Definition
Period remaining until the derivative contract matures, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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- Definition
Variable interest rate in effect as of the balance sheet date related to the interest rate derivative. No definition available.
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- Definition
Aggregate notional amount of interest rate derivatives, which relates to the currency amount specified in the interest rate derivative instruments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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