Delinquent period of loans after which interest income is discontinued.

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increase in percentage of allowance for loan losses.

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Maximum loan financing period.

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Minimum amount of commercial and commercial real estate loans on which impairment to be made.

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Number of county economy consider for credit risk purpose.

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Number of locations served by bank.

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Percentage of portfolio loans secured by real estate.

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Percentage of tax benefit likelihood to be realized upon examination.

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Period of federal fund purchased and sold.

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Summary of significant accounting policies additional textual.

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Summary of significant accounting policies.

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The total gross amount less the charge for the use of the long-lived depreciable assets subject to a lease meeting the criteria for capitalization.

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Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

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Amount of Federal Home Loan Bank (FHLB) and Federal Reserve Bank stock.

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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.

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Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment.

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Present value of lessee's discounted obligation for lease payments from operating lease.

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Amount of lessee's right to use underlying asset under operating lease.

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Carrying amount of other real estate not separately disclosed, including, but not limited to, 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. This does not include real estate assets taken in settlement of troubled loans through surrender or foreclosure.

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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.

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Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Reflects the estimated amount of impairment as of the balance sheet date of recognized servicing assets that are being amortized in proportion to and over the period of estimated net servicing income or loss.

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Summary of Significant Accounting Policies (Details Textual)		12 Months Ended
	Jan. 01, 2020	Dec. 31, 2019 USD ($) Reporting Segment Location County_Economy	Dec. 31, 2018 USD ($) Segment	Jan. 01, 2019 USD ($)	Jan. 01, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Summary of Significant Accounting Policies (Additional Textual) [Abstract]
Number of locations served by bank \| Location		39
Purchased and sold period of federal fund		1 day
Delinquent period of loans after which interest income is discontinued		90 days
Number of county economy from which credit risk exposure effected \| County_Economy		9
Percentage of portfolio loans secured by real estate		61.60%
Impairment on loan		$ 750,000
Valuation allowance impairment against servicing assets		0	$ 0			$ 0
Other real estate owned		19,000	0
Restricted stock		$ 11,700,000	11,700,000
Recognized tax amount		50.00%
Charge accrued relating to pending settlement of legal contingency		$ 505,000
Deposits with Federal Reserve Bank		$ 36,100,000	$ 34,200,000
Operating segments of business \| Segment		2	3
Operating lease, right-of-use asset		$ 3,121,000
Operating lease, liability		$ 3,184,000
Minimum \| Core Deposits
Summary of Significant Accounting Policies (Textual) [Abstract]
Intangible assets amortized period		7 years
Minimum \| Customer Relationships
Summary of Significant Accounting Policies (Textual) [Abstract]
Intangible assets amortized period		13 years
Maximum \| Core Deposits
Summary of Significant Accounting Policies (Textual) [Abstract]
Intangible assets amortized period		8 years
Maximum \| Customer Relationships
Summary of Significant Accounting Policies (Textual) [Abstract]
Intangible assets amortized period		15 years
Buildings \| Minimum
Summary of Significant Accounting Policies (Textual) [Abstract]
Range of buildings and furniture depreciated		5 years
Buildings \| Maximum
Summary of Significant Accounting Policies (Textual) [Abstract]
Range of buildings and furniture depreciated		40 years
Furniture Fixtures and Equipment \| Minimum
Summary of Significant Accounting Policies (Textual) [Abstract]
Range of buildings and furniture depreciated		3 years
Furniture Fixtures and Equipment \| Maximum
Summary of Significant Accounting Policies (Textual) [Abstract]
Range of buildings and furniture depreciated		10 years
Mortgage Servicing Rights
Summary of Significant Accounting Policies (Additional Textual) [Abstract]
Valuation allowance impairment against servicing assets			$ 0
Residential Real Estate
Summary of Significant Accounting Policies (Textual) [Abstract]
Loan financing period		15 years
ASU 2016-13 \| Minimum \| Subsequent Event
Summary of Significant Accounting Policies (Additional Textual) [Abstract]
Increase in percentage of allowance for loan losses	15.00%
ASU 2016-13 \| Maximum \| Subsequent Event
Summary of Significant Accounting Policies (Additional Textual) [Abstract]
Increase in percentage of allowance for loan losses	20.00%
ASU 2016-02
Summary of Significant Accounting Policies (Additional Textual) [Abstract]
Capitalization of leases as an asset				$ 3,600,000
Operating lease, right-of-use asset		$ 3,100,000
Operating lease, liability		$ 3,100,000
Retained Earnings
Summary of Significant Accounting Policies (Additional Textual) [Abstract]
Cumulative effect adjustment upon adoption of new accounting principle			0			169,000	$ 0
Retained Earnings \| ASU 2016-01
Summary of Significant Accounting Policies (Additional Textual) [Abstract]
Cumulative effect adjustment upon adoption of new accounting principle					$ 169,000
Accumulated Other Comprehensive Income
Summary of Significant Accounting Policies (Additional Textual) [Abstract]
Cumulative effect adjustment upon adoption of new accounting principle			0			$ (169,000)	$ 0
Accumulated Other Comprehensive Income \| ASU 2016-01
Summary of Significant Accounting Policies (Additional Textual) [Abstract]
Cumulative effect adjustment upon adoption of new accounting principle			$ (169,000)		$ (169,000)
Southwestern Pennsylvania
Summary of Significant Accounting Policies (Additional Textual) [Abstract]
Number of locations served by bank \| Location		2
NAI
Summary of Significant Accounting Policies (Additional Textual) [Abstract]
Number of reporting units \| Reporting		1
Number of reportable segments \| Segment		1