LOANS HELD FOR INVESTMENT (“HFI”) (Narrative) (Details)		3 Months Ended	12 Months Ended
	Jan. 03, 2020 USD ($)	Mar. 31, 2020 USD ($) loan	Dec. 31, 2019 USD ($) loan
Number of loans held for investment		1	2
UPB		$ 1,280,000	$ 54,100,000
Financing receivable UPB and fair value		$ 1,300,000	$ 54,100,000
Number of loans held for investment on non accrual status | loan		0	0
Repayment of hunt notes	$ 53,600,000
Unfunded loan commitments		$ 800,000	$ 1,600,000
Carrying value of Loan receivable		1,271,000	54,100,000
Finance Receivable Fair Value Option Elected [Member]
Financing receivable UPB and fair value		$ 1,300,000	$ 500,000
Solar Development Lending, LLC [Member]
Equity method investment, ownership percentage		44.50%