Portfolio Quality Indicators (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Commercial Real Estate	$ 168,517	$ 163,459
Residential	78,307	81,498
Installment	15,459	17,459
Total	348,822	329,663
Commercial
Financing Receivable, Recorded Investment [Line Items]
Commercial	86,539	67,247
Pass Grade
Financing Receivable, Recorded Investment [Line Items]
Commercial Real Estate	163,724	158,362
Residential	78,307	81,498
Installment	15,459	17,363
Total	343,926	324,373
Pass Grade \| Commercial
Financing Receivable, Recorded Investment [Line Items]
Commercial	86,436	67,150
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Commercial Real Estate	673	996
Residential	0	0
Installment	0	0
Total	775	1,035
Special Mention \| Commercial
Financing Receivable, Recorded Investment [Line Items]
Commercial	102	39
Substandard
Financing Receivable, Recorded Investment [Line Items]
Commercial Real Estate	4,120	4,101
Residential	0	0
Installment	0	96
Total	4,121	4,255
Substandard \| Commercial
Financing Receivable, Recorded Investment [Line Items]
Commercial	1	58
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Commercial Real Estate	0	0
Residential	0	0
Installment	0	0
Total	0	0
Doubtful \| Commercial
Financing Receivable, Recorded Investment [Line Items]
Commercial	$ 0	$ 0

Loans and leases receivable, residential, real estate.

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- Definition

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.

+ References

No definition available.

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- Definition

Amount, before allowance and fees, of loans and leases receivable. Excludes 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
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=65884687&loc=d3e4428-111522

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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.

+ References

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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

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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
-Paragraph 1
-Subparagraph (SX 210.9-03.7(a))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.1(c))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5066-111524

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