Consolidated Statements of Cash Flows - USD ($)	3 Months Ended				6 Months Ended		57 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Dec. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ 527,000	$ (3,671,000)	$ (4,041,000)	$ (1,256,000)	$ (3,144,000)	$ (5,297,000)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization, net					10,095,000	10,244,000
Amortization of deferred loan costs					635,000	548,000
Amortization of premiums and discounts on debt					15,000	(51,000)
Unrealized premium adjustment					1,457,000	518,000
Amortization and accretion on loans receivable, net					(279,000)	(261,000)
Write-offs of uncollectible receivables					1,076,000	302,000
Deferred income taxes					(13,000)	(867,000)
Stock-based compensation					110,000	112,000
Loans funded, held for sale to secondary market					(45,464,000)	(9,303,000)
Proceeds from sale of guaranteed loans					49,207,000	10,902,000
Principal collected on loans subject to secured borrowings					291,000	2,613,000
Other operating activity					(925,000)	(407,000)
Changes in operating assets and liabilities:
Accounts receivable					(1,089,000)	586,000
Other assets					(2,191,000)	(552,000)
Accounts payable and accrued expenses					(553,000)	(2,902,000)
Deferred leasing costs					(413,000)	(332,000)
Other liabilities					2,680,000	(1,554,000)
Due to related parties					6,345,000	942,000
Net cash provided by operating activities					17,840,000	5,241,000
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to investments in real estate					(823,000)	(9,545,000)
Loans funded					(19,746,000)	(18,567,000)
Principal collected on loans					15,747,000	4,710,000
Other investing activity					0	59,000
Net cash used in investing activities					(4,822,000)	(23,343,000)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payment of revolving credit facilities, mortgages payable, term notes and principal on SBA 7(a) loan-backed notes					(94,351,000)	(10,370,000)
Proceeds from revolving credit facilities and term notes					30,396,000	76,966,000
Payment of principal on secured borrowings					(291,000)	(2,613,000)
Payment of deferred preferred stock offering costs					(268,000)	(501,000)
Payment of deferred costs					(125,000)	(203,000)
Payment of common dividends					(2,226,000)	(2,207,000)
Proceeds from issuance of Common Stock					78,825,000	0
Payment of Common Stock offering costs					(325,000)	0
Net proceeds from issuance of Series A Preferred Warrants					0	29,000
Net proceeds from issuance of Preferred Stock					15,484,000	21,466,000
Payment of preferred stock dividends					(12,965,000)	(12,589,000)
Redemption of Preferred Stock					(1,173,000)	(1,626,000)
Noncontrolling interests’ distributions					(114,000)	(45,000)
Net cash provided by financing activities					12,867,000	68,307,000
NET INCREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH					25,885,000	50,205,000
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period		$ 43,649,000		$ 35,947,000	43,649,000	35,947,000
End of period	69,534,000		86,152,000		69,534,000	86,152,000	$ 69,534,000
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH TO THE CONSOLIDATED BALANCE SHEETS:
Cash and cash equivalents	59,730,000		75,192,000		59,730,000	75,192,000	59,730,000	$ 33,636,000
Restricted cash	9,804,000		10,960,000		9,804,000	10,960,000	9,804,000	10,013,000
Total cash and cash equivalents and restricted cash	69,534,000		86,152,000		69,534,000	86,152,000	69,534,000	$ 43,649,000
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid during the period for interest					4,582,000	5,567,000
Federal income taxes paid					425,000	100,000
SUPPLEMENTAL DISCLOSURES OF NONCASH INVESTING AND FINANCING ACTIVITIES:
Accrued capital expenditures, tenant improvements and real estate developments					390,000	3,761,000
Accrued preferred stock offering costs					984,000	616,000
Accrual of dividends payable to preferred stockholders					3,260,000	2,428,000
Preferred stock offering costs offset against redeemable preferred stock					250,000	305,000
Reclassification of Series A Preferred Stock from temporary equity to permanent equity					20,724,000	16,687,000	$ 121,200,000
Accrued deferred costs					1,000	457,000
Reclassification of loans receivable, net to real estate owned					0	174,000
Redeemable preferred stock deemed dividends	$ 106,000		$ 52,000		163,000	213,000
Accrued redeemable preferred stock fees					640,000	249,000
Equity-based payment for management fees					2,419,000	2,359,000
Accrued Common Stock offering costs included in additional paid-in capital					$ 1,557,000	$ 0