Securities Available for Sale (Details Textual) $ in Thousands		12 Months Ended
		Dec. 31, 2020 USD ($) Securities	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Schedule Of Available For Sale Securities [Line Items]
Tax provision related to net realized gain	[1]	$ (90)	$ (2)	$ 59
Pledged to secure public deposits and repurchase agreements and Pledge to qualify carrying amount of securities		$ 371,000	253,000
Number of securities not more than 10% of stockholder equities | Securities		0
Equity securities		$ 6,881	7,909
Number of securities | Securities		671
Number of securities on unrealized loss position | Securities		45
Small Business Investment Company Partnership Investments
Schedule Of Available For Sale Securities [Line Items]
Equity securities		$ 6,300
Local and Regional Bank Holdings and Other Miscellaneous Equity Funds
Schedule Of Available For Sale Securities [Line Items]
Equity securities		538
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		$ 100	$ 100

[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.