Other Benefit Plans - Narrative (Details)		12 Months Ended
	Sep. 06, 2022 Year Employee	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Nov. 30, 2021 USD ($)
Director's Retirement Plan
Defined Benefit Plan Disclosure [Line Items]
Deferred compensation arrangement with individual, recorded liability		$ 2,400,000	$ 1,900,000
Split Dollar Life Insurance Arrangements
Defined Benefit Plan Disclosure [Line Items]
Cash surrender value of bank owned life insurance		1,400,000	1,400,000
Rabbi Trust | Cash
Defined Benefit Plan Disclosure [Line Items]
Estimated Fair Value		2,900,000	4,900,000
Phoenix Bancorp Incorporated | Split Dollar Life Insurance Arrangements
Defined Benefit Plan Disclosure [Line Items]
Cash surrender value of bank owned life insurance		4,400,000	4,300,000
First Priority Financial Corporation | Split Dollar Life Insurance Arrangements
Defined Benefit Plan Disclosure [Line Items]
Cash surrender value of bank owned life insurance		3,700,000	3,700,000
Riverview Financial Corporation | Split Dollar Life Insurance Arrangements
Defined Benefit Plan Disclosure [Line Items]
Cash surrender value of bank owned life insurance		2,000,000	2,000,000
Riverview | Rabbi Trust
Defined Benefit Plan Disclosure [Line Items]
Benefit plan liabilities related to compensation arrangements					$ 7,700,000
Other Expense | Director's Retirement Plan
Defined Benefit Plan Disclosure [Line Items]
Deferred compensation arrangement with individual, compensation expense		127,000	64,000	$ 35,000
401(k) Plan | Salaries and Benefits Expense
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan, associated expense		1,700,000	1,400,000	1,000,000
Scottdale Defined Benefit Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan, associated expense		0	0	0
Benefit plan liabilities related to compensation arrangements		2,659,000	3,805,000	4,844,000
Estimated Fair Value		3,468,000	4,722,000	5,302,000
Supplemental Executive Retirement Plan
Defined Benefit Plan Disclosure [Line Items]
Number of executive officers covered | Employee	6
Number of other members covered | Employee	3
Normal retirement age | Year	70
Monthly fixed cash benefit	15 years
Accrued benefit liability		2,500,000	1,800,000
Supplemental Executive Retirement Plan | Minimum
Defined Benefit Plan Disclosure [Line Items]
Annual vesting term	4 years
Supplemental Executive Retirement Plan | Maximum
Defined Benefit Plan Disclosure [Line Items]
Annual vesting term	10 years
Supplemental Executive Retirement Plan | Salaries and Benefits Expense
Defined Benefit Plan Disclosure [Line Items]
Deferred compensation arrangement with individual, compensation expense		$ 792,000	$ 609,000	$ 625,000