DERIVATIVE FINANCIAL INSTRUMENTS - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Derivative [Line Items]
Interest expense	$ 1,807,000	$ 3,399,000	$ 3,829,000	$ 8,082,000
Unrealized loss to be reclassified as a reduction of interest expense			0
Designated as Hedging Instrument | Cash Flow Hedging | Interest Rate Swap
Derivative [Line Items]
Notional amount	5,000,000		5,000,000		$ 5,000,000
Interest expense			320,000	$ 276,000
Designated as Hedging Instrument | Cash Flow Hedging | Interest Rate Swap | FHLB Advances
Derivative [Line Items]
Notional amount	$ 40,000,000		$ 40,000,000