8. ALLOWANCE FOR LOAN AND LEASE LOSSES (Detail) - (Table 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Provision	$ 100	$ 375	$ 200	$ 955
Commercial Portfolio Segment [Member]
Beginning Balance	1,331	945	1,351	1,536
Provision	(74)	223	(158)	(320)
Loans charged-off	(1)	(103)	(11)	(151)
Recoveries	23		97
Ending balance	1,279	1,065	1,279	1,065
Ending balance:
Allowance individually evaluated for impairment	543		543		480
Ending balance:
Allowance collectively evaluated for impairment	736		736		871
Ending balance	27,054		27,054		30,811
Ending balance:
Allowance individually evaluated for impairment	2,258		2,258		2,828
Ending balance:
Allowance collectively evaluated for impairment	24,796		24,796		27,983
Commercial Real Estate Portfolio Segment [Member]
Beginning Balance	2,667	2,959	2,526	3,156
Provision	262	333	402	703
Loans charged-off	(355)	(234)	(355)	(845)
Recoveries	10	21	11	65
Ending balance	2,584	3,079	2,584	3,079
Ending balance:
Allowance individually evaluated for impairment	593		593		786
Ending balance:
Allowance collectively evaluated for impairment	1,991		1,991		1,740
Ending balance	180,585		180,585		180,126
Ending balance:
Allowance individually evaluated for impairment	13,883		13,883		19,105
Ending balance:
Allowance collectively evaluated for impairment	166,702		166,702		161,021
Multi-Family Real Estate Portfolio Segment [Member]
Beginning Balance	256	296	238	198
Provision	(9)	(32)	9	70
Loans charged-off				(8)
Recoveries		(1)		3
Ending balance	247	263	247	263
Ending balance:
Allowance individually evaluated for impairment	118		118		122
Ending balance:
Allowance collectively evaluated for impairment	129		129		116
Ending balance	10,215		10,215		9,155
Ending balance:
Allowance individually evaluated for impairment	1,665		1,665		1,681
Ending balance:
Allowance collectively evaluated for impairment	8,550		8,550		7,474
Construction Real Estate Portfolio Segment [Member]
Beginning Balance	430	467	594	582
Provision	(8)	(40)	(172)	(151)
Loans charged-off		(78)		(82)
Recoveries		22		22
Ending balance	422	371	422	371
Ending balance:
Allowance collectively evaluated for impairment	422		422		594
Ending balance	6,478		6,478		6,918
Ending balance:
Allowance individually evaluated for impairment	256		256		263
Ending balance:
Allowance collectively evaluated for impairment	6,222		6,222		6,655
Residential Portfolio Segment [Member]
Beginning Balance	501	713	477	609
Provision	53	(211)	115	6
Loans charged-off			(38)	(113)
Ending balance	554	502	554	502
Ending balance:
Allowance individually evaluated for impairment	217		217		179
Ending balance:
Allowance collectively evaluated for impairment	337		337		298
Ending balance	18,362		18,362		17,701
Ending balance:
Allowance individually evaluated for impairment	2,370		2,370		2,429
Ending balance:
Allowance collectively evaluated for impairment	15,992		15,992		15,272
Finance Leases Portfolio Segment [Member]
Beginning Balance	3	7	3	79
Provision		(12)		(76)
Loans charged-off				(8)
Recoveries		6		6
Ending balance	3	1	3	1
Ending balance:
Allowance collectively evaluated for impairment	3		3		3
Ending balance	1,172		1,172		1,509
Ending balance:
Allowance collectively evaluated for impairment	1,172		1,172		1,509
Agriculture Portfolio Segment [Member]
Beginning Balance	91	254	87	167
Provision		(48)	4	241
Loans charged-off				(202)
Ending balance	91	206	91	206
Ending balance:
Allowance collectively evaluated for impairment	91		91		87
Ending balance	3,207		3,207		3,340
Ending balance:
Allowance collectively evaluated for impairment	3,207		3,207		3,340
Consumer Portfolio Segment [Member]
Beginning Balance	249	373	262	348
Provision	(79)	75	(87)	510
Loans charged-off		(82)	(5)	(492)
Recoveries		10		10
Ending balance	170	376	170	376
Ending balance:
Allowance individually evaluated for impairment	24		24		28
Ending balance:
Allowance collectively evaluated for impairment	146		146		234
Ending balance	6,631		6,631		8,569
Ending balance:
Allowance individually evaluated for impairment	171		171		247
Ending balance:
Allowance collectively evaluated for impairment	6,460		6,460		8,322
Unallocated Porfolio Segment [Member]
Beginning Balance	375	251	243	366
Provision	(45)	87	87	(28)
Ending balance	330	338	330	338
Ending balance:
Allowance collectively evaluated for impairment	330		330		243
Total [ Member]
Beginning Balance	5,903	6,265	5,781	7,041
Provision	100	375	200	955
Loans charged-off	(356)	(497)	(409)	(1,901)
Recoveries	33	58	108	106
Ending balance	5,680	6,201	5,680	6,201
Ending balance:
Allowance individually evaluated for impairment	1,495		1,495		1,595
Ending balance:
Allowance collectively evaluated for impairment	4,185		4,185		4,186
Ending balance	253,704		253,704		258,129
Ending balance:
Allowance individually evaluated for impairment	20,603		20,603		26,553
Ending balance:
Allowance collectively evaluated for impairment	$ 233,101		$ 233,101		$ 231,576

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Reflects the gross amount charged against earnings during the period as credit losses (bad debt expense) based on review of the loan and lease portfolio and application of the methodology for estimating credit losses.

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Reflects the amount charged against earnings during the period as bad debt expense, net of recoveries of previously expensed credit losses.

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Reflects a reduction in bad debt expense attributable to collections of loans and lease receivables which had previously been fully or partially charged off as bad debts.

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Reflects the amount of loans and leases that have been removed, or charged off, from both loan receivables and the reserve for credit losses, typically because they are considered to be not salvageable or have been purchased by unconsolidated collection entities.

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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An amount representing an agreement for an unconditional promise by the maker to pay the Entity (holder) a definite sum of money at a future date(s) within one year of the balance sheet date or the normal operating cycle, whichever is longer. Such amount may include accrued interest receivable in accordance with the terms of the debt. The debt also may contain provisions including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. This amount does not include amounts related to receivables held-for-sale.

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Provision charged for the period based on estimated losses to be realized from loan and lease transactions.

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