LOANS AND ALLOWANCE FOR LOAN LOSSES - Activity in 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
Activity in allowance for loan losses
Balance, beginning of period	$ 14,460	$ 13,437	$ 14,014	$ 12,796
Provision for loan losses	300	200	900	600
Charge-offs	(123)	(159)	(581)	(363)
Recoveries	172	334	476	779
Balance, end of period	14,809	13,812	14,809	13,812
Unallocated
Activity in allowance for loan losses
Balance, beginning of period	448	585	570	475
Provision for loan losses	(322)	(75)	(444)	35
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Balance, end of period	126	510	126	510
Commercial
Activity in allowance for loan losses
Balance, beginning of period	10,069	9,078	9,447	8,710
Provision for loan losses	545	174	1,096	211
Charge-offs	(50)	(17)	(165)	(17)
Recoveries	144	201	330	532
Balance, end of period	10,708	9,436	10,708	9,436
Commercial \| Commercial Real Estate
Activity in allowance for loan losses
Balance, beginning of period	6,847	6,680	6,876	6,763
Provision for loan losses	465	194	347	(217)
Charge-offs	0	(17)	(25)	(17)
Recoveries	111	200	225	528
Balance, end of period	7,423	7,057	7,423	7,057
Commercial \| Acquisition and Development
Activity in allowance for loan losses
Balance, beginning of period	1,008	720	817	417
Provision for loan losses	(188)	19	1	319
Charge-offs	0	0	0	0
Recoveries	0	0	2	3
Balance, end of period	820	739	820	739
Commercial \| Commercial and Industrial
Activity in allowance for loan losses
Balance, beginning of period	2,120	1,598	1,656	1,446
Provision for loan losses	269	(38)	753	114
Charge-offs	(50)	0	(140)	0
Recoveries	33	1	103	1
Balance, end of period	2,372	1,561	2,372	1,561
Commercial \| Municipal
Activity in allowance for loan losses
Balance, beginning of period	94	80	98	84
Provision for loan losses	(1)	(1)	(5)	(5)
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Balance, end of period	93	79	93	79
Consumer
Activity in allowance for loan losses
Balance, beginning of period	3,943	3,774	3,997	3,611
Provision for loan losses	77	101	248	354
Charge-offs	(73)	(142)	(416)	(346)
Recoveries	28	133	146	247
Balance, end of period	3,975	3,866	3,975	3,866
Consumer \| Residential Mortgage
Activity in allowance for loan losses
Balance, beginning of period	3,734	3,544	3,753	3,400
Provision for loan losses	27	(45)	184	157
Charge-offs	(24)	(62)	(295)	(148)
Recoveries	5	102	100	130
Balance, end of period	3,742	3,539	3,742	3,539
Consumer \| Installment and Other
Activity in allowance for loan losses
Balance, beginning of period	209	230	244	211
Provision for loan losses	50	146	64	197
Charge-offs	(49)	(80)	(121)	(198)
Recoveries	23	31	46	117
Balance, end of period	$ 233	$ 327	$ 233	$ 327

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

No definition available.

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- Definition

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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- Definition

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

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