Portfolio Quality Indicators (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment [Line Items]
Commercial	$ 61,721	$ 52,286
Commercial Real Estate	163,222	158,314
Residential	83,200	83,870
Installment	18,182	21,284
Total	326,325	315,754
Pass Grade
Financing Receivable, Recorded Investment [Line Items]
Commercial	61,583	51,895
Commercial Real Estate	157,863	151,535
Residential	83,200	83,870
Installment	17,941	21,284
Total	320,587	308,584
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Commercial	40	265
Commercial Real Estate	1,014	1,980
Residential	0	0
Installment	0	0
Total	1,054	2,245
Substandard
Financing Receivable, Recorded Investment [Line Items]
Commercial	98	126
Commercial Real Estate	4,345	4,799
Residential	0	0
Installment	241	0
Total	4,684	4,925
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Commercial	0	0
Commercial Real Estate	0	0
Residential	0	0
Installment	0	0
Total	$ 0	$ 0

Loans and leases receivable, residential, real estate.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount before allowance of commercial loans and leases receivable includes, but not limited to, commercial and industrial loans, agricultural loans, mortgage loans, promissory notes, interbank and other loans to financial institutions, draws against credit facilities, trade financing, lease financings. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount before allowance of installment and revolving loans issued to individuals, including, but not limited to credit card, automobile, boat, student, durable home appliance loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

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

-Publisher FASB

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-Topic 310

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Amount before allowance of commercial loans issued to businesses to acquire, develop, construct, improve, or refinance land or building. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans covered under loss sharing agreements.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

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-Subparagraph (SX 210.9-03.7(a))

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