Note D - Acquisitions and Dispositions of Investments in Real Estate (Details Textual) - Leases, Acquired-in-Place [Member]	6 Months Ended
Jun. 30, 2022
Finite-Lived Intangible Asset, Useful Life (Year)	5 years
One W7 Carpark [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	5 years

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration