LOANS HELD FOR INVESTMENT, COVID-19 Related Deferral and Modification (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2021 USD ($) Loan	Dec. 31, 2020 USD ($)
CARES Act [Abstract]
TDRs	$ 0	$ 0
Covid-19 [Member]
CARES Act [Abstract]
Percentage of loans modified under CARES Act	1.60%
Number of outstanding loans subject to deferral and modification agreements | Loan	6
Amount of outstanding loans subject to deferral and modification agreements	$ 36,600
Covid-19 [Member] | Short-term Deferral Modification Program [Member]
CARES Act [Abstract]
Amount of outstanding principal balance of loans modified under CARES Act	$ 0