Consolidated Statements of Cash Flows - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
OPERATING ACTIVITIES
Net (loss) income	$ 1,253,000	$ (2,098,000)
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Gain on sales	(1,047,000)
Impairment charges		7,474,000
Straight-line rents and expenses, net	(103,000)	(16,000)
Provision for doubtful accounts	68,000	53,000
Depreciation and amortization	11,211,000	13,747,000
Amortization of intangible lease liabilities, net	(277,000)	(459,000)
Expense relating to share-based compensation, net	880,000	1,014,000
Amortization of deferred financing costs	342,000	310,000
Changes in operating assets and liabilities, net of effects of acquisitions and dispositions:
Rents and other receivables	(1,845,000)	(953,000)
Prepaid expenses and other	(2,234,000)	(2,507,000)
Accounts payable and accrued liabilities	1,294,000	(3,176,000)
Net cash provided by operating activities	9,542,000	13,389,000
INVESTING ACTIVITIES
Expenditures for real estate improvements	(6,949,000)	(9,813,000)
Net proceeds from sales of real estate	1,248,000
Net cash (used in) investing activities	(5,701,000)	(9,813,000)
FINANCING ACTIVITIES
Repayments under revolving credit facility	(2,000,000)	(7,000,000)
Advances under revolving credit facility	6,000,000	83,000,000
Mortgage repayments	(273,000)	(263,000)
Payments of debt financing costs	(2,476,000)
Noncontrolling interests:
Distributions to limited partners	(5,000)	(27,000)
Common stock sales less issuance expenses, net	1,000	5,000
Preferred stock dividends	(2,688,000)	(2,688,000)
Distributions to common shareholders	(899,000)	(4,468,000)
Net cash (used in) provided by financing activities	(2,340,000)	68,559,000
Net increase in cash, cash equivalents and restricted cash	1,501,000	72,135,000
Cash, cash equivalents and restricted cash at beginning of year	1,637,000	2,747,000
Cash, cash equivalents and restricted cash at end of year	3,138,000	74,882,000
Reconciliation to consolidated balance sheets:
Cash and cash equivalents	3,138,000	74,882,000
Cash, cash equivalents and restricted cash at end of year	$ 3,138,000	$ 74,882,000