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Loans, net and allowance for loan losses - Changes in Allowance for Loan Losses Account by Major Classification of Loan (Details 3) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Allowance for loan losses:
Beginning Balance	$ 11,428	$ 9,622	$ 10,338	$ 8,651
Charge-offs	(315)	(177)	(854)	(1,650)
Recoveries	30	60	159	446
Provisions	900	666	2,400	2,724
Ending balance	12,043	10,171	12,043	10,171
Commercial [Member]
Allowance for loan losses:
Beginning Balance	2,435	2,201	2,321	2,008
Charge-offs			(40)	(376)
Recoveries	2	5	66	6
Provisions		152	90	720
Ending balance	2,437	2,358	2,437	2,358
Real Estate Commercial [Member]
Allowance for loan losses:
Beginning Balance	3,190	2,675	3,037	2,394
Charge-offs	(120)	(57)	(199)	(489)
Recoveries	2	22	8	291
Provisions	342	185	568	629
Ending balance	3,414	2,825	3,414	2,825
Real Estate Residential [Member]
Allowance for loan losses:
Beginning Balance	4,027	3,458	3,690	3,135
Charge-offs	(128)	(56)	(362)	(566)
Recoveries	2		10	38
Provisions	369	239	932	1,034
Ending balance	4,270	3,641	4,270	3,641
Consumer [Member]
Allowance for loan losses:
Beginning Balance	1,776	1,288	1,290	1,114
Charge-offs	(67)	(64)	(253)	(219)
Recoveries	24	33	75	111
Provisions	189	90	810	341
Ending balance	$ 1,922	$ 1,347	$ 1,922	$ 1,347

X

- Definition

A valuation allowance for financing receivables that are expected to be uncollectible.

+ References

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-Publisher FASB



-Name Accounting Standards Codification



-Topic 310



-SubTopic 10



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Amount of recovery of financing receivables doubtful of collection that were previously charged off.

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-Publisher FASB



-Name Accounting Standards Codification



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Amount of direct write-downs of financing receivables charged against the allowance.

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