Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Real Estate Related Loans, Deferred Fee Income and loan loss allowance	$ 9,850	$ 10,261
Real Estate Related Loans, Deferred Fee Income And Loan Loss Allowance, Related Parties	9,011	9,011
Finite-Lived Intangible Assets, Accumulated Amortization	166,214	169,718
sales inducements accumulated amortization	7,113	5,350
Below Market Lease, Accumulated Amortization	$ 36,314	$ 34,006
Common Stock, par value per share	$ 0.01
Common stock, shares outstanding	52,974,760
Series A Preferred Stock [Member]
Series A Redeemable Preferred Stock, par value per share	$ 0.01	$ 0.01
Preferred stock, shares authorized	3,050,000	3,050,000
Preferred stock, shares issued	2,226,000	2,226,000
Shares outstanding, preferred stock	1,321,000	1,735,000
Series A1 Preferred Stock [Member]
Series A Redeemable Preferred Stock, par value per share	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	247,000	149,000
Shares outstanding, preferred stock	246,000	149,000
Series M Preferred Stock [Member]
Series A Redeemable Preferred Stock, par value per share	$ 0.01	$ 0.01
Preferred stock, shares authorized	500,000	500,000
Preferred stock, shares issued	106,000	106,000
Shares outstanding, preferred stock	84,000	89,000
Series M1 Preferred Stock [Member]
Series A Redeemable Preferred Stock, par value per share	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	43,000	19,000
Shares outstanding, preferred stock	41,000	19,000
Common Stock [Member]
Common Stock, par value per share	$ 0.01	$ 0.01
Common stock, shares authorized	400,067,000	400,067,000
Common Stock, Shares, Issued	52,975,000	49,994,000
Common stock, shares outstanding	52,975,000	49,994,000
Mortgages [Member]
Deferred loan costs, accumulated amortization	$ 39,288	$ 46,241