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Securities Available for Sale (Details Textual)		12 Months Ended
		Dec. 31, 2021 USD ($) Securities	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Schedule Of Available For Sale Securities [Line Items]
Tax provision related to net realized gain	[1]	$ 176,000	$ (90,000)	$ (2,000)
Pledged to secure public deposits and repurchase agreements and Pledge to qualify carrying amount of securities		$ 491,000,000	371,000,000
Number of securities not more than 10% of stockholder equities | Securities		0
Number of securities | Securities		842
Number of securities on unrealized loss position | Securities		207
Allowance for credit losses on available-for-sale securities		$ 0
Small Business Investment Company Partnership Investments
Schedule Of Available For Sale Securities [Line Items]
Equity securities		14,700,000
Local and Regional Bank Holdings and Other Miscellaneous Equity Funds
Schedule Of Available For Sale Securities [Line Items]
Equity securities		228,000
Farmers Trust Company
Schedule Of Available For Sale Securities [Line Items]
Pledged to secure public deposits and repurchase agreements and Pledge to qualify carrying amount of securities		$ 102,000	$ 100,000
[1] Pre-tax reclassification adjustments relating to available-for-sale securities are reported in security gains and the tax impact is included in income tax expense on the consolidated statements of income.

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