Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2021	Mar. 31, 2022	Jun. 30, 2021
Document Information Line Items
Entity Registrant Name	PRESIDENTIAL REALTY CORPORATION
Document Type	10-K
Current Fiscal Year End Date	--12-31
Entity Public Float			$ 176,040
Amendment Flag	false
Entity Central Index Key	0000731245
Entity Current Reporting Status	No
Entity Voluntary Filers	No
Entity Filer Category	Non-accelerated Filer
Entity Well-known Seasoned Issuer	No
Document Period End Date	Dec. 31, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
ICFR Auditor Attestation Flag	false
Document Annual Report	true
Document Transition Report	false
Entity File Number	001-08594
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	13-1954619
Entity Address, Address Line One	530 Seventh Avenue
Entity Address, Address Line Two	Suite 407
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10018
Entity Interactive Data Current	No
Auditor Name	Baker Tilly US LLP
Auditor Location	Tysons, Virginia
Auditor Firm ID	32
City Area Code	(914)
Local Phone Number	948-1300
Class A Common Stock
Document Information Line Items
Entity Common Stock, Shares Outstanding		442,533
Class B Common Stock
Document Information Line Items
Entity Common Stock, Shares Outstanding		4,746,147