Document And Entity Information (USD $)	12 Months Ended
	Dec. 31, 2014	Jun. 30, 2014	Mar. 24, 2015
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Trading Symbol	PDNLB
Entity Registrant Name	PRESIDENTIAL REALTY CORP/DE/
Entity Central Index Key	0000731245
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Smaller Reporting Company
Entity Public Float		$ 2,897,147
Common Class A [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding			442,533
Common Class B [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding			3,846,147