Summary of Significant Accounting Policies (Narrative) (Details)				6 Months Ended	12 Months Ended			24 Months Ended	36 Months Ended
	Dec. 01, 2021 shares	Nov. 30, 2021 USD ($) Apartment shares	May 04, 2021 USD ($) $ / shares shares	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($) Apartment shares	Dec. 31, 2020 USD ($) shares	Dec. 31, 2019 USD ($) shares	Dec. 31, 2021 USD ($) shares	Dec. 31, 2021 USD ($) shares	Aug. 26, 2020 shares	Aug. 25, 2020 shares	Dec. 31, 2018 USD ($)	May 06, 2014 shares
Cash reserve balances					$ 0	$ 0		$ 0	$ 0
Net gain on sales of investment securities					79,000	467,000	$ 1,878,000
Loans and leases receivable, net, carrying amount					3,089,799,000	2,370,659,000		3,089,799,000	3,089,799,000
Loans and leases receivable, acquired amount						388,313,000
Loans and leases, net of unearned interest					1,010,039,000	276,701,000		1,010,039,000	1,010,039,000
Bank premises and equipment held for sale					3,907,000	210,000		3,907,000	3,907,000
Asset held for sale, impairment and restructuring charge					$ 874,000	0
Asset held for sale, description					Bank premises and equipment designated as held for sale are carried at the lower of cost or market value, and, at December 31, 2021, totaled $3,907,000 related to the December 7, 2021 announcement of a Retail Network Optimization Plan under which the Bank announced its intention to close certain retail locations throughout its expanded footprint. The branch closures occurred on about March 4, 2022. Adjustments to record these held for sale assets at the lower of cost or fair value related to the held for sale properties were included in post-acquisition restructuring expenses and totaled $874,000 for the year ended December 31, 2021.  Bank premises and equipment designated as held for sale at December 31, 2020 totaled $210,000, and related to a retail banking property which was closed and listed for sale on December 31, 2020.   No impairment or restructuring charges were recorded during the year ended December 31, 2020.
Other securities					$ 1,199,000	$ 1,253,000	$ 782,000
Federal tax rate					21.00%	21.00%	21.00%
Goodwill					$ 113,835,000	$ 62,840,000	$ 62,840,000	113,835,000	113,835,000
Goodwill acquired					50,995,000
Goodwill, Impairment Loss					0	0	0
Amortization expense					1,180,000	1,398,000	1,430,000
Residential real estate held in other real estate owned					0	134,000		0	0
Foreclosure proceedings in process					729,000	13,000		729,000	729,000
Mortgage servicing rights					27,000	49,000		27,000	27,000
Mortgage servicing rights, amortization					22,000	29,000	$ 28,000
Impairment of mortgage servicing rights									0
Principal balance of loans serviced					5,590,000	9,384,000		5,590,000	5,590,000
Trust assets					$ 274,950,000	$ 148,621,000		$ 274,950,000	$ 274,950,000
Common Stock, Shares Authorized | shares					20,000,000	20,000,000		20,000,000	20,000,000	200,000	100,000
Number of antidilutive shares | shares					0	0	0
Follow-on Public Offering [Member]
Common shares issued through follow-on public offering, shares | shares			2,990,000
Common stock, price per share | $ / shares			$ 25.00
Proceeds from follow-on common stock public offering			$ 74,750,000
Proceeds from follow-on common stock public offering			$ 70,238,000		$ 70,238,000
2014 Restricted Stock Plan [Member]
Shares authorized per plan | shares													100,000
Enola, Pennsylvania [Member]
Carrying value of investment in limited partnership					102,000	$ 146,000		$ 102,000	$ 102,000
Low Income Housing Tax Credit							$ 31,000
Carrying value of investment in limited partnership					$ 102,000	146,000		102,000	102,000
Dauphin County, Pennsylvania [Member]
Low Income Housing Tax Credit						853,000	74,000
Number of apartments under the project | Apartment					37
Limited partner capital contribution commitment					$ 7,579,000			7,579,000	7,579,000
Project investment amortization period					10 years
LIHTCs amount awarded for the project					$ 8,530,000
Dauphin County, Pennsylvania [Member] | Other Assets [Member]
Carrying value of investment in limited partnership					5,962,000	6,682,000		5,962,000	5,962,000
Carrying value of investment in limited partnership					$ 5,962,000	6,682,000		5,962,000	5,962,000
Core Deposit Intangible [Member]
Core Deposit Intangible, Amortization Period					10 years
Intangible assets, net					$ 7,282,000	4,311,000	5,526,000	7,282,000	7,282,000			$ 6,893,000
Amortization expense					1,125,000	1,215,000	1,367,000
Impairment of core deposit intangible					0	0	0
Intangible assets, growth recognized					$ 475,436,000	$ 562,186,000
Finite Lived Intangible Assets Growth Percentage					19.00%	29.00%
Customer Lists Intangible [Member]
Core Deposit Intangible, Amortization Period					10 years
Intangible assets, net					$ 2,127,000			2,127,000	2,127,000
Amortization expense					33,000
Federal Home Loan Bank of Pittsburgh [Member]
Other securities					345,000	$ 360,000	$ 424,000
Riverview [Member]
Amount of acquired loan portfolio		$ 3,311,000			811,599,000			811,599,000	811,599,000
Goodwill		$ 50,995,000
Goodwill acquired					50,995,000
Number of apartments under the project | Apartment		17
Limited partner capital contribution commitment		$ 4,356,000
Project investment amortization period		10 years
LIHTCs amount awarded for the project		$ 484,000
Assets (Liabilities) position of funded status					$ 819,000			819,000	819,000
Defined contribution plan, employer matching contribution, percent of match					100.00%
Defined contribution plan, employer matching contribution, percent of employees' gross pay					4.00%
Stock issued during period, shares | shares	4,519,776	4,519,776			4,519,776
Riverview [Member] | Interest Rate Swaps on Trust Preferred Securities [Member] | Not Designated as Hedging Instrument [Member]
Notional amount		$ 9,279,000
Derivative, weighted average rate calculation period		10 years
Derivative, weighted average rate		2.99%
Derivative, weighted average remaining maturity					8 years 6 months
Derivative, estimated fair value					$ 629,000			629,000	629,000
Riverview [Member] | Interest Rate Swaps on Trust Preferred Securities [Member] | Not Designated as Hedging Instrument [Member] | Other Income [Member]
Derivative, change in fair value recoded as a component of other income					34,000
Riverview [Member] | Core Deposit Intangible [Member]
Amortization expense					62,000
Riverview [Member] | Customer Lists Intangible [Member]
Amortization expense					33,000
First Priority Financial Corporation [Member]
Goodwill acquired					39,744,000	39,744,000
Scottdale Bank and Trust Company [Member]
Goodwill acquired					19,178,000	19,178,000
Assets (Liabilities) position of funded status					458,000	(461,000)		458,000	458,000
Settlement gains recognized					47,000	3,000
Phoenix Bancorp Incorporated [Member]
Goodwill acquired					3,918,000	3,918,000
Reserve for Off-balance Sheet Activities [Member]
Valuation allowances and reserves, balance					$ 72,000	66,000		$ 72,000	$ 72,000
Commercial Portfolio [Member]
Loan terms					1 year
Loan to value ratio					80.00%			80.00%	80.00%
Small Business Administration [Member] | PPP Loans [Member]
Loan guarantee description					The PPP loans, which are 100 percent guaranteed by the SBA, have up to a five-year term to maturity and carry a low interest rate of 1 percent throughout the loan term
Loans and leases receivable, net, carrying amount					$ 111,286,000	388,313,000		$ 111,286,000	$ 111,286,000
Loans and leases receivable, disbursed amount				$ 101,175,000		5,210,000
Nonrefundable loan processing fees received					17,997,000	20,883,000		38,880,000
Deferred loan processing fees					3,811,000	7,746,000		3,811,000	3,811,000
Proceeds from deferred loan processing fees					3,784,000	27,000
Loan processing fees					21,954,000	13,137,000
Loss reserve					0	0
Equity Securities [Member]
Equity securities, fair value					500,000	515,000		500,000	500,000
Equity Securities [Member] | Accounting Standards Update 2016-01
Equity securities, fair value					500,000	515,000		$ 500,000	$ 500,000
Equity securities sold					$ 0
Preferred stock of another financial institution, purchased and subsequently sold						1,000,000
Net gain on sales of investment securities						$ 6,000
Maximum [Member]
Maturity of interest bearing time deposits with other financial institutions					1 year
Non-residential consumer loans charged off on contractual basis in event of bankruptcy, in period					120 days			120 days	120 days
Maximum [Member] | Building Assets [Member]
Property, plant and equipment, useful life					50 years
Maximum [Member] | Furniture, Fixtures, and Equipment [Member]
Property, plant and equipment, useful life					10 years
Maximum [Member] | Land Improvements [Member]
Property, plant and equipment, useful life					20 years
Maximum [Member] | Leasehold Improvements [Member]
Property, plant and equipment, useful life					15 years
Maximum [Member] | Residential Portfolio [Member]
Loan terms					30 years
Loan to value ratio					100.00%			100.00%	100.00%
Loan to value ratio, exposure after private mortgage insurance					85.00%
Maximum [Member] | Small Business Administration [Member] | PPP Loans [Member]
Processing fee percentage					5.00%
Maximum [Member] | Home equity lines of credit [Member]
Loan terms					20 years
Loan to value ratio					85.00%			85.00%	85.00%
Maximum [Member] | Home Equity Lines Of Credit [Member]
Loan terms					5 years
Minimum [Member] | Building Assets [Member]
Property, plant and equipment, useful life					5 years
Minimum [Member] | Furniture, Fixtures, and Equipment [Member]
Property, plant and equipment, useful life					3 years
Minimum [Member] | Land Improvements [Member]
Property, plant and equipment, useful life					10 years
Minimum [Member] | Leasehold Improvements [Member]
Property, plant and equipment, useful life					10 years
Minimum [Member] | Small Business Administration [Member] | PPP Loans [Member]
Processing fee percentage					1.00%