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Related Party Transactions (Details Narrative) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2014
Related Party Transactions [Abstract] |  |  |
Charges/allocation related to Transition Services Agreement with Patriot | $ 1,542 | $ 2,211 | $ 2,539
Charges/allocations related to discontinued operations | $ 0 | $ 1,081 | $ 2,685

X
- References No definition available. + Details
Name: | FRPH_UnallocatedtoDiscontinuedOps
Namespace Prefix: | FRPH_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of selling, general and administrative expenses resulting from transactions, excluding transactions that are eliminated in consolidated or combined financial statements, with related party. + References No definition available. + Details
Name: | us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_RelatedPartyTransactionsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration