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Short-Term Borrowings and Long-Term Debt - Short-term borrowings (Details)	9 Months Ended
	Sep. 30, 2021 USD ($) item	Dec. 31, 2020 USD ($)
Short-Term Borrowings
Short term borrowings	$ 22,278,000	$ 106,862,000
Federal Home Loan Bank of Pittsburgh
Short-Term Borrowings
Maximum borrowing capacity	$ 39,000,000
Federal funds purchased | Federal Home Loan Bank of Pittsburgh
Short-Term Borrowings
Number of borrowing facilities | item	2
Short term borrowings	$ 0	0
Open Repo Plus Weekly 0.33 Percent Maturing On 05/31/2022 | Federal Home Loan Bank of Pittsburgh
Short-Term Borrowings
Interest rate (as a percent)	0.33%
Short term borrowings		60,416,000
Federal Reserve discount window | Federal Home Loan Bank of Pittsburgh
Short-Term Borrowings
Maximum borrowing capacity	$ 3,700,000
Interest rate (as a percent)	0.25%
Short term borrowings	$ 0	10,000,000
PPPLF Advance
Short-Term Borrowings
Advances secured percentage	100.00%
Interest rate (as a percent)	0.35%
Short term borrowings	$ 78,400,000
Mid-term Repo-fixed 0.36%, Maturing On 01/13/2021 | Federal Home Loan Bank of Pittsburgh
Short-Term Borrowings
Interest rate (as a percent)	0.36%
Short term borrowings		4,605,000
Mid-term Repo-fixed 0.10%, Maturing On 06/10/2021 | Federal Home Loan Bank of Pittsburgh
Short-Term Borrowings
Interest rate (as a percent)	0.10%
Short term borrowings		6,376,000
Mid-term Repo-fixed 0.11%, Maturing On 09/10/2021 | Federal Home Loan Bank of Pittsburgh
Short-Term Borrowings
Interest rate (as a percent)	0.11%
Short term borrowings		10,000,000
Mid-term Repo-fixed 0.16%, Maturing On 12/10/2021 | Federal Home Loan Bank of Pittsburgh
Short-Term Borrowings
Interest rate (as a percent)	0.16%
Short term borrowings	$ 10,000,000	10,000,000
Mid-term Repo-fixed 0.23%, Maturing On 01/27/2021 | Federal Home Loan Bank of Pittsburgh
Short-Term Borrowings
Interest rate (as a percent)	0.23%
Short term borrowings		$ 5,465,000
Mid-term Repo-fixed 0.32%, Maturing On 08/10/2020 | Federal Home Loan Bank of Pittsburgh
Short-Term Borrowings
Interest rate (as a percent)	0.32%
Short term borrowings	$ 7,392,000
Mid-term Repo-fixed 0.23%, Maturing On 08/10/2020 | Federal Home Loan Bank of Pittsburgh
Short-Term Borrowings
Interest rate (as a percent)	0.23%
Short term borrowings	$ 4,886,000

X

- Definition

The number of borrowing facilities.

+ References

No definition available.

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- Definition

The percentage of short term borrowings that are secured by the aggregate face value of pools comprised of loans with common maturity dates.

+ References

No definition available.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ 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
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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

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-Publisher FASB
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-Topic 210
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