Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Revenues:
Transportation	$ 31,717us-gaap_SalesRevenueServicesNet	$ 31,591us-gaap_SalesRevenueServicesNet
Mining royalty land	1,344us-gaap_RevenueMineralSales	1,268us-gaap_RevenueMineralSales
Developed property rentals	6,958	5,961
Total revenues	40,019us-gaap_Revenues	38,820us-gaap_Revenues
Cost of operations:
Transportation	29,657us-gaap_CostOfServices	30,135us-gaap_CostOfServices
Mining royalty land	425FRPH_OperatingCostsAndExpensesMining	329FRPH_OperatingCostsAndExpensesMining
Developed property rentals	4,521	3,878
Unallocated corporate	318us-gaap_GeneralAndAdministrativeExpense	354us-gaap_GeneralAndAdministrativeExpense
Total cost of operations	34,921us-gaap_OperatingExpenses	34,696us-gaap_OperatingExpenses
Operating profit:
Transportation	2,060FRPH_OperatingIncomeLossTransportation	1,456FRPH_OperatingIncomeLossTransportation
Mining royalty land	919FRPH_OperatingIncomeLossMining	939FRPH_OperatingIncomeLossMining
Developed property rentals	2,437	2,083
Unallocated corporate	(318)us-gaap_GeneralAndAdministrativeExpense	(354)us-gaap_GeneralAndAdministrativeExpense
Total operating profit	5,098us-gaap_OperatingIncomeLoss	4,124us-gaap_OperatingIncomeLoss
(Loss) Gain on investment land sold	(17)us-gaap_GainLossOnSaleOfProperties	56us-gaap_GainLossOnSaleOfProperties
Interest income and other	0us-gaap_InterestAndOtherIncome	1us-gaap_InterestAndOtherIncome
Equity in loss of joint ventures	(30)	(32)
Interest expense	(472)us-gaap_InterestExpense	(311)us-gaap_InterestExpense
Income before income taxes	4,579	3,838
Provision for income taxes	(1,786)us-gaap_IncomeTaxExpenseBenefit	(1,497)us-gaap_IncomeTaxExpenseBenefit
Net income	2,793us-gaap_NetIncomeLoss	2,341us-gaap_NetIncomeLoss
Comprehensive Income	$ 2,793us-gaap_ComprehensiveIncomeNetOfTax	$ 2,341us-gaap_ComprehensiveIncomeNetOfTax
Basic earnings per common share
Net income	$ 0.29us-gaap_EarningsPerShareBasic	$ 0.24us-gaap_EarningsPerShareBasic
Diluted earnings per common share
Net income	$ 0.29us-gaap_EarningsPerShareDiluted	$ 0.24us-gaap_EarningsPerShareDiluted
Number of weighted average shares (in thousands) used in computing:
-basic earnings per common share	9,711	9,568
-diluted earnings per common share	9,771	9,674

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