Document And Entity Information	6 Months Ended
	Jun. 30, 2013	Aug. 14, 2013 Common Class A [Member]	Aug. 14, 2013 Common Class B [Member]
Document Information [Line Items]
Entity Registrant Name	PRESIDENTIAL REALTY CORP/DE/
Entity Central Index Key	0000731245
Current Fiscal Year End Date	--12-31
Entity Filer Category	Smaller Reporting Company
Trading Symbol	PDNLA
Entity Common Stock, Shares Outstanding		442,533	3,227,147
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2013
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2013