LOANS AND ALLOWANCE FOR LOAN LOSSES - Activity in Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Activity in allowance for loan losses
Balance, beginning of period	$ 13,000	$ 12,668	$ 12,796	$ 12,775
Provision for loan losses	200	100	400	100
Charge-offs	(133)	(78)	(204)	(207)
Recoveries	370	61	445	83
Balance, end of period	13,437	12,751	13,437	12,751
Unallocated
Activity in allowance for loan losses
Balance, beginning of period	461	512	475	414
Provision for loan losses	124	(42)	110	56
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Balance, end of period	585	470	585	470
Commercial
Activity in allowance for loan losses
Balance, beginning of period	8,953	8,800	8,710	9,238
Provision for loan losses	(205)	(69)	37	(411)
Charge-offs	0	0	0	(100)
Recoveries	330	33	331	37
Balance, end of period	9,078	8,764	9,078	8,764
Commercial \| Commercial Real Estate
Activity in allowance for loan losses
Balance, beginning of period	6,770	6,963	6,763	7,530
Provision for loan losses	(418)	(214)	(411)	(738)
Charge-offs	0	0	0	(45)
Recoveries	328	28	328	30
Balance, end of period	6,680	6,777	6,680	6,777
Commercial \| Acquisition and Development
Activity in allowance for loan losses
Balance, beginning of period	510	513	417	580
Provision for loan losses	208	65	300	(3)
Charge-offs	0	0	0	0
Recoveries	2	1	3	2
Balance, end of period	720	579	720	579
Commercial \| Commercial and Industrial
Activity in allowance for loan losses
Balance, beginning of period	1,590	1,218	1,446	1,074
Provision for loan losses	8	69	152	267
Charge-offs	0	0	0	(55)
Recoveries	0	4	0	5
Balance, end of period	1,598	1,291	1,598	1,291
Commercial \| Municipal
Activity in allowance for loan losses
Balance, beginning of period	83	106	84	54
Provision for loan losses	(3)	11	(4)	63
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Balance, end of period	80	117	80	117
Consumer
Activity in allowance for loan losses
Balance, beginning of period	3,586	3,356	3,611	3,123
Provision for loan losses	281	211	253	455
Charge-offs	(133)	(78)	(204)	(107)
Recoveries	40	28	114	46
Balance, end of period	3,774	3,517	3,774	3,517
Consumer \| Residential Mortgage
Activity in allowance for loan losses
Balance, beginning of period	3,382	3,229	3,400	2,979
Provision for loan losses	237	198	202	441
Charge-offs	(86)	(51)	(86)	(51)
Recoveries	11	10	28	17
Balance, end of period	3,544	3,386	3,544	3,386
Consumer \| Installment and Other
Activity in allowance for loan losses
Balance, beginning of period	204	127	211	144
Provision for loan losses	44	13	51	14
Charge-offs	(47)	(27)	(118)	(56)
Recoveries	29	18	86	29
Balance, end of period	$ 230	$ 131	$ 230	$ 131

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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