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Subsequent Events - Additional Information (Detail) (USD $)
3 Months Ended
Feb. 28, 2014
Feb. 28, 2014
Minimum [Member]
Feb. 28, 2014
Maximum [Member]
May 31, 2014
Subsequent Event [Member]
May 31, 2014
Subsequent Event [Member]
Elkhart Indiana [Member]
Subsequent Event [Line Items]          
Gain on sale of undeveloped land         $ 240,000
Proceed from sale of undeveloped land       982,000  
Proceed from life insurance policy loans       $ 6,100,000  
Interest rates of loan   4.20% 7.40%    
Weighted average interest rate for the loans 5.90%