ALLOWANCE FOR LOAN LOSSES - Changes in the Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Allowance for Loan Losses
Beginning balance	$ 31,171	$ 31,652	$ 31,418	$ 31,707
Charge-offs	(9)	(4)	(4,479)	(1,736)
Recoveries	11	21	134	498
Provision (Credit)	1,000	200	5,100	1,400
Ending balance	32,173	31,869	32,173	31,869
Commercial Real Estate \| Mortgage loans
Allowance for Loan Losses
Beginning balance	10,878	11,206	10,792	11,048
Charge-offs	0	0	(3,670)	0
Recoveries	0	0	0	0
Provision (Credit)	1,051	203	4,807	361
Ending balance	11,929	11,409	11,929	11,409
Multi-family
Allowance for Loan Losses
Beginning balance			2,566	4,521
Charge-offs			0	0
Recoveries			0	0
Provision (Credit)			424	(1,728)
Ending balance	2,990	2,793	2,990	2,793
Multi-family \| Mortgage loans
Allowance for Loan Losses
Beginning balance	2,545	2,466	2,566
Charge-offs	0	0
Recoveries	0	0
Provision (Credit)	445	327
Ending balance	2,990	2,793	2,990	2,793
Residential real estate mortgage loans
Allowance for Loan Losses
Beginning balance			3,935	2,438
Charge-offs			0	(24)
Recoveries			112	2
Provision (Credit)			(2,139)	2,027
Ending balance	1,908	4,443	1,908	4,443
Residential real estate mortgage loans \| Mortgage loans
Allowance for Loan Losses
Beginning balance	2,620	4,237	3,935
Charge-offs	0	0
Recoveries	1	1
Provision (Credit)	(713)	205
Ending balance	1,908	4,443	1,908	4,443
Commercial, industrial and agricultural loans
Allowance for Loan Losses
Beginning balance	13,558	12,358	12,722	12,838
Charge-offs	0	0	(796)	(1,708)
Recoveries	0	19	12	494
Provision (Credit)	523	(569)	2,143	184
Ending balance	14,081	11,808	14,081	11,808
Real estate construction and land loans
Allowance for Loan Losses
Beginning balance	1,333	1,263	1,297	740
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision (Credit)	(335)	38	(299)	561
Ending balance	998	1,301	998	1,301
Installment/consumer loans
Allowance for Loan Losses
Beginning balance	237	122	106	122
Charge-offs	(9)	(4)	(13)	(4)
Recoveries	10	1	10	2
Provision (Credit)	29	(4)	164	(5)
Ending balance	$ 267	$ 115	$ 267	$ 115

Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

+ References

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- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount of expense related to estimated loss from loan and lease transactions.

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