Note 3 - Real Estate (Details Textual) - USD ($) $ / shares in Units, $ in Thousands					9 Months Ended
	Sep. 29, 2022	Sep. 01, 2022	Feb. 08, 2022	Dec. 21, 2021	Sep. 30, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Preferred stock, par value					$ 0.01	$ 0.01
Common stock, shares par value					$ 0.01	$ 0.01
Midtown Row [Member]
Business Acquisition [Line Items]
Purchase price				$ 122,000
Revised acquisition amount to be paid		$ 123,300
Common units of limited partnership interest		5,000
Initial deposit for real estate purchase		200
Second Deposit for Real Estate Purchase		250
Pledged Development Fee for Real Estate Purchase		300
Third Deposit for Real Estate Purchase		$ 1,250
Midtown Row [Member] | Common Op Units [Member]
Business Acquisition [Line Items]
Common stock, shares par value		$ 2.00
Midtown Row [Member] | Preferred Op Units [Member]
Business Acquisition [Line Items]
Preferred stock, par value		$ 2.00
Colfax Land Parcel [Member]
Business Acquisition [Line Items]
Purchase price			$ 2,500
Amount of security deposit will be forfeited					$ 300
Real estate expense					300
Second Colfax Agreement [member]
Business Acquisition [Line Items]
Purchase price	$ 2,300
Amount Of Security Deposit					$ 100