COMMITMENTS AND CONTINGENCIES (Details) $ in Thousands	1 Months Ended	3 Months Ended
	Sep. 30, 2018 USD ($)	Mar. 31, 2020 USD ($) officer	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)
Commitments and contingencies
Outstanding loan commitments to fund loans		$ 12,745
Future obligations under leases to fund tenant improvements and other future construction obligation		5,464
Restricted cash		10,430	$ 11,738	$ 12,146
Right-of use asset		43		106
Lease liability		43,000		$ 106,000
Rent expense		74	$ 76
Minimum lease payments for remainder of fiscal year		$ 43
Employment agreements | Executive Officers
Commitments and contingencies
Number of officers covered under employment agreement | officer		2
Multiplier used for the calculation of payments in the event of death of employee		2
Multiplier used for the calculation of payments in the event of disability to employee		1
Restricted Cash for Tenant Improvements
Commitments and contingencies
Restricted cash		$ 2,814
City and County of San Francisco Real Property Transfer Tax Case | Pending Litigation
Commitments and contingencies
Refund sought for penalties, interest and legal fees paid for real property transfer tax	$ 11,845