Loan terms.

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- Definition

Loan to value ratio.

+ References

No definition available.

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- Definition

Loan to value ratio, exposure after private mortgage insurance.

+ References

No definition available.

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- Definition

Low income housing tax credit.

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No definition available.

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- Definition

Number of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i))
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- Definition

The noninterest income derived from mortgage banking activities (fees and commissions), excluding fees earned from servicing third-party assets.

+ References

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

The net gain (loss) realized from the sale, exchange, redemption, or retirement of securities, not separately or otherwise categorized as trading, available-for-sale, or held-to-maturity.

+ References

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-Name Accounting Standards Codification
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-Subparagraph (SX 210.9-04.13(h))
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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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- Definition

Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity.

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-Name Accounting Standards Codification
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- Definition

Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership.

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-Paragraph 1
-Subparagraph (SX 210.5-02.12)
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- Definition

Period of time between issuance and maturity of customer deposits, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Publisher SEC
-Name Industry Guide
-Number 3
-Section V
-Paragraph D-E

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- Definition

Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 35
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- Definition

Amount, after discount, accretion and premium amortization, of interest income and dividend income classified as other.

+ References

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- Definition

Carrying amount as of the balance sheet date of other real estate and foreclosed assets. Other real estate may include real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. Foreclosed assets include all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings.

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-Name Accounting Standards Codification
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-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10(4))
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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

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- Definition

Investments which are not defined as or included in marketable (debt, equity, or other) securities whose use is restricted in whole or in part, generally by contractual agreements or regulatory requirements. For use in an unclassified balance sheet.

+ References

No definition available.

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- Definition

Aggregate amount of servicing assets that are subsequently measured at fair value and servicing assets that are subsequently measured using the amortization method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745

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- Definition

Amount of amortization of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-SubTopic 50
-Section 50
-Paragraph 4
-Subparagraph (a)(4)
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Threshold period past due for financing receivable to write off as uncollectible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.

+ References

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-SubTopic 10
-Section S99
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-Subparagraph (SX 210.12-09)
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Summary of Significant Accounting Policies (Narrative) (Detail) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net gain on sales of investment securities	$ 12,000	$ 213,000	$ 20,000	$ 213,000	$ 1,046,000	$ 325,000	$ 168,000
Held-to-maturity Securities	71,096,000		71,096,000		0	0
Mortgage banking income	225,000	246,000	416,000	432,000	922,000	456,000	313,000
Other securities	64,000	$ 78,000	107,000	$ 172,000	304,000	382,000	155,000
Residential real estate held in other real estate owned					57,000	358,000
Foreclosure proceedings in process	$ 140,000		$ 140,000		426,000	0
Mortgage servicing rights					144,000	174,000
Mortgage servicing rights, amortization					30,000	24,000	36,000
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures					321,000	365,000
Low Income Housing Tax Credit					$ 46,000	46,000	46,000
Core Deposit Intangible, Amortization Period					10 years
Goodwill, Impairment Loss					$ 0	$ 0	$ 0
Class of warrant or right, outstanding	0	0	0	0	0	0	0
Federal Home Loan Bank of Pittsburgh [Member]
Other securities					$ 135,000	$ 250,000
Restricted investments					2,443,000	4,266,000
Reserve for Off-balance Sheet Activities [Member]
Valuation Allowances and Reserves, Balance					$ 120,000	$ 94,500
Commercial Portfolio [Member]
Loan Terms					1 year
Loan To Value Ratio					80.00%
Maximum [Member]
Maturity of interest bearing time deposits with other financial institutions					1 year
Non-residential consumer loans charged off on contractual basis in event of bankruptcy, in period					120 days
Maximum [Member] \| Building Assets [Member]
Property, Plant and Equipment, Useful Life					50 years
Maximum [Member] \| Furniture, Fixtures, and Equipment [Member]
Property, Plant and Equipment, Useful Life					10 years
Maximum [Member] \| Land Improvements [Member]
Property, Plant and Equipment, Useful Life					20 years
Maximum [Member] \| Leasehold Improvements [Member]
Property, Plant and Equipment, Useful Life					30 years
Maximum [Member] \| Home equity lines of credit [Member]
Loan Terms					20 years
Loan To Value Ratio					85.00%
Maximum [Member] \| Home Equity Lines Of Credit [Member]
Loan Terms					5 years
Maximum [Member] \| Residential Portfolio [Member]
Loan Terms					30 years
Loan To Value Ratio					100.00%
Loan To Value Ratio, Exposure After Private Mortgage Insurance					85.00%
Minimum [Member] \| Building Assets [Member]
Property, Plant and Equipment, Useful Life					5 years
Minimum [Member] \| Furniture, Fixtures, and Equipment [Member]
Property, Plant and Equipment, Useful Life					3 years
Minimum [Member] \| Land Improvements [Member]
Property, Plant and Equipment, Useful Life					10 years
Minimum [Member] \| Leasehold Improvements [Member]
Property, Plant and Equipment, Useful Life					10 years