Borrowings (Narrative) (Details) - USD ($)	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Federal Home Loan Bank, Advances [Line Items]
Maximum borrowing capacity with the Federal Home Loan Bank of Pittsburgh ("FHLB")	$ 166,178,000	$ 183,790,000
Long-term debt	35,000,000	45,000,000
Federal Home Loan Bank Advances	55,830,000	55,604,000
Federal Reserve Bank ("FRB") advances	27,955,000	0
Issuance of FRB advances	31,298,000	0
FHLB advances, repayment of debt	10,000,000	15,000,000
FHLB advances, prepayment penalty	(524,000)	$ 0
Securities Sold under Agreements to Repurchase [Member]
Federal Home Loan Bank, Advances [Line Items]
Fair value of pledged assets	8,870,000
Paycheck Protection Program Liquidity Facility [Member]
Federal Home Loan Bank, Advances [Line Items]
Federal Reserve Bank ("FRB") advances	27,955,000
Issuance of FRB advances	$ 31,298,000
Maturity of the PPPLF advance	2 years
FHLB advances, fixed interest rate	0.35%
FHLB advances, weighted average interest rate	2.75%
FHLB advances, repayment of debt	$ 10,000,000
FHLB advances, prepayment penalty	$ (524,000)

Federal Reserve Bank Advances.

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- Definition

Proceeds From Federal Reserve Bank Advances

+ References

No definition available.

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- Definition

Amount of restricted investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 30
-Section 50
-Paragraph 1A
-Subparagraph (b)(1)(i)
-URI http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729

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- Definition

Amount of Federal Home Loan Bank (FHLBank) advances to member financial institutions.

+ References

No definition available.

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- Definition

Interest rate of advances made and reported by Federal Home Loan Bank (FHLBank).

+ References

No definition available.

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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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Maturity period on fixed rate advances made and reported by Federal Home Loan Bank (FHLBank), 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

Weighted average interest rate on advances made and reported by Federal Home Loan Bank (FHLBank).

+ References

No definition available.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(3)
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-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

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Amount of income earned, after hedging basis adjustments, from fees charged for prepayment of certain Federal Home Loan Bank (FHLBank) advances before original maturity.

+ References

No definition available.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
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-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585

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