LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - LOANS - Allowance for Loan Losses by Loan Categories (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
ALLOWANCE FOR LOAN LOSSES
Provision for loan losses	$ 1,619		$ 2,471	$ 1,500
Loans charged-off	(297)	$ (349)	(820)	(890)
Recoveries	280	208	540	452
Ending balance	24,967	27,234	24,967	27,234
Period End Amount Allocated to
Loans individually evaluated for impairment		1,257		1,257
Loans collectively evaluated for impairment		25,977		25,977
Ending balance	24,967	27,234	24,967	27,234
LOANS RECEIVABLE
Loans individually evaluated for impairment		6,304		6,304
Loans collectively evaluated for impairment		1,666,594		1,666,594
Total loans receivable	1,971,039	1,672,898	1,971,039	1,672,898	$ 1,754,175
Cumulative Effect, Period of Adoption, Adjusted Balance
ALLOWANCE FOR LOAN LOSSES
Beginning balance	23,365	27,375	25,635	26,172
Period End Amount Allocated to
Ending balance					25,635
Accounting Standards Update 2016-13 | Cumulative Effect, Period of Adoption, Adjustment
ALLOWANCE FOR LOAN LOSSES
Beginning balance			(2,859)
Period End Amount Allocated to
Ending balance					(2,859)
Unallocated Financing Receivables [Member]
ALLOWANCE FOR LOAN LOSSES
Provision for loan losses		(1,047)		(462)
Ending balance		229		229
Period End Amount Allocated to
Loans collectively evaluated for impairment		229		229
Ending balance		229		229
Unallocated Financing Receivables [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance
ALLOWANCE FOR LOAN LOSSES
Beginning balance		1,276	21	691
Period End Amount Allocated to
Ending balance					21
Unallocated Financing Receivables [Member] | Accounting Standards Update 2016-13 | Cumulative Effect, Period of Adoption, Adjustment
ALLOWANCE FOR LOAN LOSSES
Beginning balance			(21)
Period End Amount Allocated to
Ending balance					(21)
REAL ESTATE LOANS
ALLOWANCE FOR LOAN LOSSES
Provision for loan losses	952	693	1,948	462
Ending balance	11,512	14,308	11,512	14,308
Period End Amount Allocated to
Loans collectively evaluated for impairment		14,308		14,308
Ending balance	11,512	14,308	11,512	14,308
LOANS RECEIVABLE
Loans individually evaluated for impairment		1,049		1,049
Loans collectively evaluated for impairment		980,414		980,414
Total loans receivable	1,248,513	981,463	1,248,513	981,463	1,090,303
REAL ESTATE LOANS | Cumulative Effect, Period of Adoption, Adjusted Balance
ALLOWANCE FOR LOAN LOSSES
Beginning balance	10,560	13,615	14,798	13,846
Period End Amount Allocated to
Ending balance					14,798
REAL ESTATE LOANS | Accounting Standards Update 2016-13 | Cumulative Effect, Period of Adoption, Adjustment
ALLOWANCE FOR LOAN LOSSES
Beginning balance			(5,234)
Period End Amount Allocated to
Ending balance					(5,234)
CONSUMER LOANS
ALLOWANCE FOR LOAN LOSSES
Provision for loan losses	830	349	527	727
Loans charged-off	(297)	(349)	(820)	(852)
Recoveries	280	208	540	452
Ending balance	10,605	7,023	10,605	7,023
Period End Amount Allocated to
Loans individually evaluated for impairment		269		269
Loans collectively evaluated for impairment		6,754		6,754
Ending balance	10,605	7,023	10,605	7,023
LOANS RECEIVABLE
Loans individually evaluated for impairment		768		768
Loans collectively evaluated for impairment		395,686		395,686
Total loans receivable	485,327	396,454	485,327	396,454	422,043
CONSUMER LOANS | Cumulative Effect, Period of Adoption, Adjusted Balance
ALLOWANCE FOR LOAN LOSSES
Beginning balance	9,792	6,815	4,280	6,696
Period End Amount Allocated to
Ending balance					4,280
CONSUMER LOANS | Accounting Standards Update 2016-13 | Cumulative Effect, Period of Adoption, Adjustment
ALLOWANCE FOR LOAN LOSSES
Beginning balance			6,078
Period End Amount Allocated to
Ending balance					6,078
COMMERCIAL BUSINESS LOANS
ALLOWANCE FOR LOAN LOSSES
Provision for loan losses	(163)	5	(4)	773
Loans charged-off				(38)
Ending balance	2,850	5,674	2,850	5,674
Period End Amount Allocated to
Loans individually evaluated for impairment		988		988
Loans collectively evaluated for impairment		4,686		4,686
Ending balance	2,850	5,674	2,850	5,674
LOANS RECEIVABLE
Loans individually evaluated for impairment		4,487		4,487
Loans collectively evaluated for impairment		290,494		290,494
Total loans receivable	237,199	294,981	237,199	294,981	241,829
COMMERCIAL BUSINESS LOANS | Cumulative Effect, Period of Adoption, Adjusted Balance
ALLOWANCE FOR LOAN LOSSES
Beginning balance	$ 3,013	$ 5,669	6,536	$ 4,939
Period End Amount Allocated to
Ending balance					6,536
COMMERCIAL BUSINESS LOANS | Accounting Standards Update 2016-13 | Cumulative Effect, Period of Adoption, Adjustment
ALLOWANCE FOR LOAN LOSSES
Beginning balance			$ (3,682)
Period End Amount Allocated to
Ending balance					$ (3,682)