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Long-Term Debt (Narrative) (Details) (USD $) In Thousands, unless otherwise specified |  |  |  | 1 Months Ended | 9 Months Ended | 12 Months Ended | 9 Months Ended |  | 9 Months Ended | 12 Months Ended | 1 Months Ended |  | 0 Months Ended
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Jun. 30, 2014 | Sep. 30, 2013 | Jun. 30, 2014 Revolving Line of Credit and Term Note [Member] | Feb. 28, 2014 Revolving Line of Credit [Member] | Jun. 30, 2014 Revolving Line of Credit [Member] | Sep. 30, 2013 Revolving Line of Credit [Member] | Jun. 30, 2014 Revolving Line of Credit [Member] Minimum [Member] | Jun. 30, 2014 Revolving Line of Credit [Member] Maximum [Member] | Jun. 30, 2014 Revolving Line of Credit [Member] Property [Member] acre | Jun. 30, 2014 Term Loan [Member] | Sep. 30, 2013 Term Loan [Member] | Oct. 01, 2015 Term Loan [Member] Maximum [Member] Scenario, Forecast [Member] | Jun. 30, 2014 Term Loan [Member] Property [Member] acre | Jun. 30, 2014 Term Loan [Member] Producing Citrus Groves [Member] acre | Oct. 10, 2012 Mortgage Note Payable [Member] acre
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal balance outstanding | $ 34,500 | $ 36,000 |  |  |  |  |  |  |  | $ 34,500 | $ 36,000 |  |  |  |
Acres collateralized |  |  |  |  |  |  |  |  | 43,991 |  |  |  | 12,280 | 8,600 |
Amount of credit facility |  |  | 94,500 |  | 60,000 |  |  |  |  |  |  |  |  |  |
Annual commitment fee |  |  |  |  | 0.15% |  |  |  |  |  |  |  |  |  |
Amount of commitment fees |  |  |  | 83 |  |  |  |  |  |  |  |  |  |  |
Commitment fee payable |  |  |  |  | 30 |  |  |  |  |  |  |  |  |  |
LIBOR spread |  |  |  |  | 2.25% |  | 2.25% | 2.75% |  | 2.50% |  | 5.00% |  |  |
Periodic principal payment |  |  |  |  |  |  |  |  |  | 500 |  |  |  |  |
Scheduled maturity date |  |  |  |  | Oct. 01, 2020 | Oct. 01, 2020 |  |  |  | Oct. 01, 2020 | Oct. 01, 2020 |  |  |  |
Minimum number of days notice required for rate change |  |  |  |  | 30 days |  |  |  |  |  |  |  |  |  |
Amount of debt extinguished |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,794
Prepayment penalty |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 66
Acres of collateral released in extinguishment |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7,680

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