LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Allowance for Credit Losses (Details) - USD ($)	6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Financing Receivable, Allowance For Credit Losses [Line Items]
Average loans	$ 204,477,000	$ 244,416,000
Net charge-offs to average loans (annualized)	0.01%	(0.25%)
Number of borrowers	8	12
Loans charged off	$ 107,000	$ 124,000	$ 253,000
Outstanding commitments	30,200,000		31,800,000
Unfunded commitments
Beginning balance	371,000	33,000	33,000
Reduction of unfunded reserve	(17,000)	(13,000)
Provisions charged to operations	59,000
Ending balance	$ 413,000	477,000	$ 371,000
ASU 2016-13
Unfunded commitments
Impact of ASC 326 adoption		$ 457,000