LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES - Activity in Allowance for Loan Losses (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Activity in allowance for loan losses
Balance, beginning of period	$ 14,461	$ 20,497	$ 14,747	$ 20,965
Provision for loan losses	0	0	0	0
Charge-offs	(659)	(574)	(994)	(1,102)
Recoveries	50	502	99	562
Balance, end of period	13,852	20,425	13,852	20,425
Commercial
Activity in allowance for loan losses
Balance, beginning of period	10,720	15,356	11,148	14,993
Provision for loan losses	(432)	762	(781)	1,364
Charge-offs	(499)	(504)	(613)	(772)
Recoveries	26	462	61	491
Balance, end of period	9,815	16,076	9,815	16,076
Commercial \| Commercial Real Estate
Activity in allowance for loan losses
Balance, beginning of period	9,346	13,719	9,462	13,215
Provision for loan losses	(750)	645	(813)	1,383
Charge-offs	(475)	(415)	(541)	(674)
Recoveries	11	104	24	129
Balance, end of period	8,132	14,053	8,132	14,053
Commercial \| Acquisition and Development
Activity in allowance for loan losses
Balance, beginning of period	588	474	697	670
Provision for loan losses	132	407	45	211
Charge-offs	0	(34)	(22)	(34)
Recoveries	0	5	0	5
Balance, end of period	720	852	720	852
Commercial \| Commercial and Industrial
Activity in allowance for loan losses
Balance, beginning of period	665	919	806	864
Provision for loan losses	188	(224)	51	(164)
Charge-offs	(24)	(55)	(50)	(64)
Recoveries	15	353	37	357
Balance, end of period	844	993	844	993
Commercial \| Municipal
Activity in allowance for loan losses
Balance, beginning of period	121	244	183	244
Provision for loan losses	(2)	(66)	(64)	(66)
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Balance, end of period	119	178	119	178
Consumer
Activity in allowance for loan losses
Balance, beginning of period	2,683	3,238	2,381	3,904
Provision for loan losses	553	(660)	1,062	(1,097)
Charge-offs	(160)	(70)	(381)	(330)
Recoveries	24	40	38	71
Balance, end of period	3,100	2,548	3,100	2,548
Consumer \| Residential Mortgage
Activity in allowance for loan losses
Balance, beginning of period	2,567	3,112	2,262	3,780
Provision for loan losses	479	(741)	973	(1,222)
Charge-offs	(151)	(16)	(352)	(209)
Recoveries	23	7	35	13
Balance, end of period	2,918	2,362	2,918	2,362
Consumer \| Installment and other loans
Activity in allowance for loan losses
Balance, beginning of period	116	126	119	124
Provision for loan losses	74	81	89	125
Charge-offs	(9)	(54)	(29)	(121)
Recoveries	1	33	3	58
Balance, end of period	182	186	182	186
Unallocated
Activity in allowance for loan losses
Balance, beginning of period	1,058	1,903	1,218	2,068
Provision for loan losses	(121)	(102)	(281)	(267)
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Balance, end of period	$ 937	$ 1,801	$ 937	$ 1,801

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 6

-Section L

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- Definition

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

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