DERIVATIVES AND HEDGING (Narrative) (Details)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2020 USD ($) derivative	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) derivative	Jun. 30, 2019 USD ($)	Dec. 31, 2019 USD ($) derivative
Other Commitments [Line Items]
Loss Contingency Accrual	$ 0		$ 0		$ 0
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred			771,000
Customer Loan Swaps
Other Commitments [Line Items]
Cash held as collateral	48,200,000		48,200,000		18,400,000
Interest Rate Lock Commitments
Other Commitments [Line Items]
Unrealized Gain (Loss) on Derivatives	(1,000,000.0)	$ 223,000	496,000	$ 404,000
Notional Amount	104,052,000		104,052,000		29,606,000
Interest Rate Swap On Loans [Member]
Other Commitments [Line Items]
Cash held as collateral	4,000,000.0		4,000,000.0		560,000
Derivative Instrument Payment Of Interest Rate Swaps Designated As Cash Flow Hedges			299,000
Notional Amount	100,000,000		100,000,000		$ 100,000,000
Loss on Cash Flow Hedge Ineffectiveness	0		0
Interest Rate Swap On Borrowings
Other Commitments [Line Items]
Derivative Instrument Payment Of Interest Rate Swaps Designated As Cash Flow Hedges			30,000
Notional Amount	100,000,000		100,000,000
Derivative, Number of Interest Rate Swap Agreements | derivative					2
Interest rate swaps
Other Commitments [Line Items]
Cash held as collateral	13,300,000		13,300,000		$ 8,800,000
Derivative Instrument Payment Of Interest Rate Swaps Designated As Cash Flow Hedges			537,000	318,000
Notional Amount	43,000,000		43,000,000		43,000,000
Loss on Cash Flow Hedge Ineffectiveness	0	0	0	0
Forward Contracts [Member]
Other Commitments [Line Items]
Unrealized Gain (Loss) on Derivatives	(1,000,000.0)	$ 159,000	(156,000)	$ 242,000
Notional Amount	35,909,000		35,909,000		11,915,000
Federal home loan bank 30-day | Interest rate swaps
Other Commitments [Line Items]
Notional Amount	$ 400,934,000		$ 400,934,000		$ 366,351,000
Derivative, Number of Instruments Held | derivative	83		83		75
Commercial and Industrial Sector [Member] | Interest rate swaps
Other Commitments [Line Items]
Notional Amount	$ 400,934,000		$ 400,934,000		$ 411,594,000
Derivative, Number of Instruments Held | derivative	83		83		85
Contract, Two | Interest Rate Swap On Borrowings
Other Commitments [Line Items]
Notional Amount	$ 50,000,000		$ 50,000,000
Contract, Two | Interest rate swaps
Other Commitments [Line Items]
Notional Amount	10,000,000		10,000,000		$ 10,000,000
Contract One | Interest Rate Swap On Borrowings
Other Commitments [Line Items]
Notional Amount	50,000,000		50,000,000
Contract One | Interest rate swaps
Other Commitments [Line Items]
Notional Amount	$ 10,000,000		$ 10,000,000		$ 10,000,000