LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES - Activity in Allowance for Loan Losses (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015
Activity in allowance for loan losses
Balance, beginning of period	$ 13,568	$ 14,747
Provision for loan losses	0	0
Charge-offs	(329)	(335)
Recoveries	108	49
Balance, end of period	13,347	14,461
Commercial
Activity in allowance for loan losses
Balance, beginning of period	9,803	11,148
Provision for loan losses	(37)	(349)
Charge-offs	(21)	(114)
Recoveries	82	35
Balance, end of period	9,827	10,720
Commercial \| Commercial Real Estate
Activity in allowance for loan losses
Balance, beginning of period	7,883	9,462
Provision for loan losses	33	(63)
Charge-offs	0	(66)
Recoveries	80	13
Balance, end of period	7,996	9,346
Commercial \| Acquisition and Development
Activity in allowance for loan losses
Balance, beginning of period	850	697
Provision for loan losses	(111)	(87)
Charge-offs	0	(22)
Recoveries	0	0
Balance, end of period	739	588
Commercial \| Commercial and Industrial
Activity in allowance for loan losses
Balance, beginning of period	1,012	806
Provision for loan losses	37	(137)
Charge-offs	(21)	(26)
Recoveries	2	22
Balance, end of period	1,030	665
Commercial \| Municipal
Activity in allowance for loan losses
Balance, beginning of period	58	183
Provision for loan losses	4	(62)
Charge-offs	0	0
Recoveries	0	0
Balance, end of period	62	121
Consumer
Activity in allowance for loan losses
Balance, beginning of period	2,991	2,381
Provision for loan losses	147	509
Charge-offs	(308)	(221)
Recoveries	26	14
Balance, end of period	2,856	2,683
Consumer \| Residential Mortgage
Activity in allowance for loan losses
Balance, beginning of period	2,870	2,262
Provision for loan losses	45	494
Charge-offs	(244)	(201)
Recoveries	6	12
Balance, end of period	2,677	2,567
Consumer \| Installment and Other
Activity in allowance for loan losses
Balance, beginning of period	121	119
Provision for loan losses	102	15
Charge-offs	(64)	(20)
Recoveries	20	2
Balance, end of period	179	116
Unallocated
Activity in allowance for loan losses
Balance, beginning of period	774	1,218
Provision for loan losses	(110)	(160)
Charge-offs	0	0
Recoveries	0	0
Balance, end of period	$ 664	$ 1,058

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
-Name Accounting Standards Codification
-Topic 310
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-Publisher FASB
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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
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