FAIR VALUE OF FINANCIAL INSTRUMENTS - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Financial Instruments Not Measured at Fair Value
Financial assets fair value	$ 0
Financial liabilities fair value	$ 0
Junior subordinated notes | Level 2 | Market valuation
Financial Instruments Not Measured at Fair Value
Market interest rate	4.21%	4.22%
Junior subordinated notes | Carrying andFair Value | Level 2
Financial Instruments Not Measured at Fair Value
Estimated fair value lower than carrying value	$ 8,296,000	$ 8,670,000
Mortgages | Level 2 | Market valuation | Minimum
Financial Instruments Not Measured at Fair Value
Market interest rate	3.12%	2.87%
Mortgages | Level 2 | Market valuation | Maximum
Financial Instruments Not Measured at Fair Value
Market interest rate	3.87%	3.28%
Mortgages | Carrying andFair Value | Level 2
Financial Instruments Not Measured at Fair Value
Estimated fair value lower than carrying value	$ 511,000	$ 3,831,000