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Accounting Policies (Details Narrative) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2015 | Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2014 | Oct. 31, 2015
Patriot shares received | FRP's shareholders received one share of Patriot for every three shares of FRP owned on the record date. |  |  |  |
Depreciation and depletion |  | $ 6,809 | $ 6,195 | $ 5,528 |
Reclass from deferred costs to long-term deferred tax liability |  |  |  |  | $ 143
Buildings and improvements |  |  |  |  |
Estimated useful lives |  | 3-39 |  |  |
Brooksville Joint Venture |  |  |  |  |
Voting interest |  | 50.00% |  |  |
BC FRP Realty Joint Venture |  |  |  |  |
Voting interest |  | 50.00% |  |  |

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