Document and Entity Information	3 Months Ended
	Dec. 31, 2016 shares
Document And Entity Information
Entity Registrant Name	FRP HOLDINGS, INC.
Entity Central Index Key	0000844059
Document Type	10-QT
Document Period End Date	Dec. 31, 2016
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Is Entity a Well-known Seasoned Issuer?	No
Is Entity a Voluntary Filer?	No
Is Entity's Reporting Status Current?	No
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding	9,914,054
Document Fiscal Period Focus	Q4
Document Fiscal Year Focus	2016