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Contingencies (Details) (USD $)
9 Months Ended 0 Months Ended 1 Months Ended
Sep. 30, 2014
lawsuit
Mar. 11, 2010
Promenade D'Iberville LLC [Member]
Feb. 28, 2014
Promenade D'Iberville LLC [Member]
Aug. 31, 2013
Promenade D'Iberville LLC [Member]
Guarantor Obligations [Line Items]        
Retainage allegedly owed under the construction contract   $ 327,000    
Litigation settlement, amount     800,000 8,240,000
Number of pending lawsuits 3      
Environmental liability insurance, maximum coverage per incident 10,000,000      
Environmental liability insurance, annual coverage limit. $ 50,000,000