Quarterly report pursuant to Section 13 or 15(d)

Fair Value of Financial Instruments (Details 2)

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Fair Value of Financial Instruments (Details 2) (Unconsolidated affiliates [Member], USD $)
9 Months Ended
Aug. 31, 2012
Unconsolidated affiliates [Member]
 
Condensed financial information of unconsolidated affiliates  
Revenues $ 55,797,834
Operating expenses 42,793,623
Net Income 1,283,754
Current assets 31,552,000
Noncurrent assets 296,706,000
Current liabilities 16,974,000
Noncurrent liabilities 108,331,000
Partner's equity $ 202,953,000