Annual report pursuant to section 13 and 15(d)

Basis of Presentation and Significant Accounting Policies (Narrative) (Details)

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Basis of Presentation and Significant Accounting Policies (Narrative) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
12 Months Ended
Sep. 30, 2013
segments
Sep. 30, 2012
Basis of Presentation and Significant Accounting Policies [Abstract]    
Number of segments 5  
Restricted cash    
Restricted cash    $ 2,500
Citrus trees [Member]
   
Property, Buildings and Equipment    
Estimated useful life 25 years  
Cost capitalization period 4 years  
Sugarcane Plantings [Member]
   
Property, Buildings and Equipment    
Estimated useful life 3 years  
Cost capitalization period 1 year  
Total crop yield 3  
Annual crop yield 1  
Restricted Stock [Member]
   
Stock-based Compensation    
Number of shares authorized 350,000  
Shares issued to Directors 25,584  
Weighted average fair value of shares issued to Directors $ 38.41  
Shares eligible for grant 334,126  
Nonvested restricted shares 152,403  
Minimum [Member]
   
Real Estate    
Down payment as a percent of the sales price 20.00%  
Minimum [Member] | Restricted Stock [Member]
   
Stock-based Compensation    
Vesting period 1 year  
Maximum [Member]
   
Real Estate    
Down payment as a percent of the sales price 25.00%  
Maximum [Member] | Restricted Stock [Member]
   
Stock-based Compensation    
Vesting period 6 years  
Sales Revenue, Product Line [Member] | Customer Concentration Risk [Member] | Sugarcane Program [Member]
   
Major Customers    
Concentration risk percentage 100.00%