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Debt (Details Narrative) (USD $)
12 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2010
Debt Disclosure [Abstract]      
Lowest interest rate on mortgage notes 5.60%    
Highest interest rate on mortgage notes 8.60%    
Principal payments 2013 $ 5,239,000    
Principal payments 2014 5,308,000    
Principal payments 2015 5,379,000    
Principal payments 2016 5,516,000    
Principal payments 2017 5,843,000    
Principal payments 2018 and subsequent years 35,085,000    
Revolving Credit Agreement 37,000,000    
Revolver interest over LIBOR 1%    
Commitment fee 0.15%    
Letters of credit issued 9,009,000    
Letters of credit available for borrowing 27,991,000    
Consolidated retained earnings available for payment of dividends 56,639,000    
Carrying value of collateral on mortgage notes payable 74,784,000    
Capitalized interest $ 1,646,000 $ 1,232,000 $ 952,000