BORROWED FUNDS AND REPURCHASE AGREEMENTS, Collateral Pledged on the Repurchase Agreements by Contractual Maturity (Details) - USD ($) $ in Thousands			12 Months Ended
		Apr. 16, 2021	Dec. 31, 2023	Dec. 31, 2022	Apr. 30, 2021	Dec. 31, 2008	Dec. 31, 2003
Remaining Contractual Maturity of Agreements [Abstract]
Total carrying value of collateral pledged			$ 19,490	$ 20,371
Total liability recognized for repurchase agreements			18,043	17,776
Borrowed Funds And Repurchase Agreement [Abstract]
Borrowed funds			322,036	257,278
Interest Rate Swap Arrangements [Member]
Borrowed Funds And Repurchase Agreement [Abstract]
Portion of advances subject to interest rate swap arrangements			43,000
Notes payable amount			7,500
HV Bancorp, Inc. [Member]
Borrowed Funds And Repurchase Agreement [Abstract]
Carrying value of securities pledged as collateral			9,028
U.S. Agency Securities [Member]
Remaining Contractual Maturity of Agreements [Abstract]
Total carrying value of collateral pledged			19,490	20,371
Overnight and Continuous [Member]
Remaining Contractual Maturity of Agreements [Abstract]
Total carrying value of collateral pledged			19,490	20,371
Overnight and Continuous [Member] | U.S. Agency Securities [Member]
Remaining Contractual Maturity of Agreements [Abstract]
Total carrying value of collateral pledged			19,490	20,371
Up to 30 Days [Member]
Remaining Contractual Maturity of Agreements [Abstract]
Total carrying value of collateral pledged			0	0
Up to 30 Days [Member] | U.S. Agency Securities [Member]
Remaining Contractual Maturity of Agreements [Abstract]
Total carrying value of collateral pledged			0	0
30 - 90 Days [Member]
Remaining Contractual Maturity of Agreements [Abstract]
Total carrying value of collateral pledged			0	0
30 - 90 Days [Member] | U.S. Agency Securities [Member]
Remaining Contractual Maturity of Agreements [Abstract]
Total carrying value of collateral pledged			0	0
Greater than 90 Days [Member]
Remaining Contractual Maturity of Agreements [Abstract]
Total carrying value of collateral pledged			0	0
Greater than 90 Days [Member] | U.S. Agency Securities [Member]
Remaining Contractual Maturity of Agreements [Abstract]
Total carrying value of collateral pledged			0	0
FHLB Advances [Member]
Borrowed Funds And Repurchase Agreement [Abstract]
Maximum borrowing limit			1,074,864
Borrowed funds	[1]		135,841	169,110
Bank Federal Funds Lines [Member]
Borrowed Funds And Repurchase Agreement [Abstract]
Maximum borrowing limit			34,000
Borrowed funds	[2]		0	0
FRB BIC Line [Member]
Borrowed Funds And Repurchase Agreement [Abstract]
Maximum borrowing limit			993	1,050
Carrying value of securities pledged as collateral			1,230	1,360
Borrowed funds	[3]		0	0
FRB Term Funding Program [Member]
Borrowed Funds And Repurchase Agreement [Abstract]
Maximum borrowing limit			54,525
Borrowed funds	[4]		$ 20,000	0
Subordinated Debt [Member]
Borrowed Funds And Repurchase Agreement [Abstract]
Face amount of debt					$ 10,000
Variable rate basis			90-day
Basis points interest rate		3.23%
Unamortized debt issuance costs		$ 131	$ 95
Stated interest rate		4.00%
Notes maturity date			Apr. 16, 2031
Borrowed funds	[5]		$ 18,933	9,892
Subordinated Debt [Member] | HV Bancorp, Inc. [Member]
Borrowed Funds And Repurchase Agreement [Abstract]
Face amount of debt			$ 10,000
Variable rate basis			90-day
Basis points interest rate			3.25%
Stated interest rate			4.50%
Notes maturity date			May 28, 2031
Fair market value			$ 8,873
Notes Payable [Member]
Borrowed Funds And Repurchase Agreement [Abstract]
Face amount of debt			$ 7,500
Variable rate basis			3-month SOFR
Basis points interest rate			2.80%
Notional amount of derivative liability							$ 7,500
Unamortized debt issuance costs						$ 75
Borrowed funds	[6]		$ 7,500	7,500
Line of Credit [Member]
Borrowed Funds And Repurchase Agreement [Abstract]
Borrowed funds	[7]		12,572	0
Line of Credit [Member] | New York Community Bank [Member]
Borrowed Funds And Repurchase Agreement [Abstract]
Revolving line of credit maximum borrowing capacity			$ 15,000
Notes maturity date			Jan. 01, 2026
Revolving line of credit, annual fee			$ 20
Term Loans [Member]
Borrowed Funds And Repurchase Agreement [Abstract]
Borrowed funds	[8]		$ 98,287	53,000
Term Loans [Member] | January 2, 2024 [Member]
Borrowed Funds And Repurchase Agreement [Abstract]
Stated interest rate			5.73%
Notes maturity date			Jan. 02, 2024
Borrowed funds			$ 25,000	0
Term Loans [Member] | February 14, 2024 [Member]
Borrowed Funds And Repurchase Agreement [Abstract]
Stated interest rate			5.64%
Notes maturity date			Feb. 14, 2024
Borrowed funds			$ 18,000	0
Term Loans [Member] | March 28, 2024 [Member]
Borrowed Funds And Repurchase Agreement [Abstract]
Stated interest rate			2.46%
Notes maturity date			Mar. 28, 2024
Borrowed funds			$ 5,000	5,000
Term Loans [Member] | August 20, 2024 [Member]
Borrowed Funds And Repurchase Agreement [Abstract]
Stated interest rate			1.70%
Notes maturity date			Aug. 20, 2024
Borrowed funds			$ 5,000	5,000
Term Loans [Member] | November 11, 2024 [Member]
Borrowed Funds And Repurchase Agreement [Abstract]
Stated interest rate			4.75%
Notes maturity date			Nov. 11, 2024
Borrowed funds			$ 5,000	0
Term Loans [Member] | May 12, 2025 [Member]
Borrowed Funds And Repurchase Agreement [Abstract]
Stated interest rate			4.47%
Notes maturity date			May 12, 2025
Borrowed funds			$ 10,000	0
Term Loans [Member] | November 12, 2025 [Member]
Borrowed Funds And Repurchase Agreement [Abstract]
Stated interest rate			4.32%
Notes maturity date			Nov. 12, 2025
Borrowed funds			$ 5,000	0
Term Loans [Member] | July 7, 2025 [Member]
Borrowed Funds And Repurchase Agreement [Abstract]
Stated interest rate			5.03%
Notes maturity date			Jul. 07, 2025
Borrowed funds			$ 25,287	0
Term Loans [Member] | January 3, 2023 [Member]
Borrowed Funds And Repurchase Agreement [Abstract]
Stated interest rate			3.86%
Notes maturity date			Jan. 03, 2023
Borrowed funds			$ 0	25,000
Term Loans [Member] | February 14, 2023 [Member]
Borrowed Funds And Repurchase Agreement [Abstract]
Stated interest rate			4.57%
Notes maturity date			Feb. 14, 2023
Borrowed funds			$ 0	$ 18,000

[1] FHLB Advances consist of an “Open RepoPlus” agreement with the FHLB of Pittsburgh. FHLB “Open RepoPlus” advances are short-term borrowings that bear interest based on the FHLB discount rate or Federal Funds rate, whichever is higher. The Company has a borrowing limit of $1,074,864,000, inclusive of any outstanding advances and letters of credit. FHLB advances are secured by a blanket security agreement that includes the Company’s FHLB stock, as well as certain investment and mortgage-backed securities held in safekeeping at the FHLB and certain residential and commercial mortgage loans. A portion of these advances, $43.0 million, are subject to interest rate swap arrangements. See Note 19 for additional information.

[2] The federal funds lines consist of unsecured lines from two third party banks at market rates.  The Bank has a borrowing limit totaling $34,000,000, inclusive of any outstanding balances.  No specific collateral is required to be pledged for these borrowings.

[3] The Federal Reserve Bank Borrower in Custody (FRB BIC) Line consists of a borrower in custody in agreement opened in January 2010 with the Federal Reserve Bank of Philadelphia secured by municipal loans maintained in the Company’s possession.  As of December 31, 2023, and 2022, the Company has a borrowing limit of $993,000 and $1,050,000, respectively, inclusive of any outstanding advances. The approximate carrying value of the municipal loan collateral was $1,230,000 and $1,360,000 as of December 31, 2023 and 2022, respectively.

[4] The Federal Reserve’s Bank Term Funding Program (BTFP) consists of a loan agreement opened in the second quarter of 2023 with the Federal Reserve Bank of Philadelphia secured by US treasury and SBA securities. The BTFP offers loans of up to one year in length. As of December 31, 2023, the Bank has a borrowing limit of $54,525,000, which also represents the par value of the pledged securities.as of December 31, 2023.  As of December 31, 2023, $20,000,000 was outstanding under the BTFP.

[5] In April 2021, the Company issued $10.0 million of fixed to floating rate subordinated notes that mature on April 16, 2031, unless redeemed earlier. The notes bear interest at 4% per annum through April 16, 2026 and subsequently pay interest at the 90-day average secured overnight financing rate, determined on the determination date of the applicable interest period, plus 323 basis points. The Company may redeem the notes, in whole or in part, on or after April 16, 2026, and at any time upon the occurrence of certain events, subject in each case to the approval of the Board of Governors of the Federal Reserve System (the “Federal Reserve”). Issuance costs associated with the notes totaled $131,000 and were capitalized and will be amortized over the life of the note on a straight-line basis, which approximates the effective yield method. As of December 31, 2023, the net unamortized issuance costs totaled $95,000. As part of the HVBC acquisition, the Company acquired a subordinated note issued by HVBC with a par value of $10.0 million and a fair market value of $8,873,000 on the date of acquisition. This note has a maturity date of May 28, 2031, and has a coupon rate of 4.50% per annum through May 28, 2026. Thereafter, the note rate is adjustable and resets quarterly based on the then current 90-day average Secured Overnight Financing Rate (“SOFR”) plus 325 basis points for U.S. dollar denominated loans as published by the Federal Reserve Bank of New York. The Company may, at its option, at any time on an interest payment date, on or after May 28, 2026, redeem the notes, in whole or in part, at par plus accrued interest to the date of redemption. The carrying value of the note as of December 31, 2023 is $9,028,000.

[6] In December 2003, the Company formed a special purpose entity (“Entity”) to issue $7,500,000 of floating rate obligated mandatory redeemable trust preferred securities as part of a pooled offering. The rate was determined quarterly and floated based on the 3-month SOFR plus 2.80 percent.   The Entity may redeem them, in whole or in part, at face value after December 17, 2008, and on a quarterly basis thereafter. The Company borrowed the proceeds of the issuance from the Entity in December 2003 in the form of a $7,500,000 note payable. Debt issue costs of $75,000 have been capitalized and fully amortized as of December 31, 2008.  Under current accounting rules, the Company’s minority interest in the Entity was recorded at the initial investment amount and is included in the other assets section of the balance sheet. The Entity is not consolidated as part of the Company’s consolidated financial statements. The $7,500,000 note payable is subject to an interest rate swap arrangement. See Note 19 for additional information.

[7] The Company issued a $15.0 million revolving line of credit in December 2023 with a New York community bank with a maturity date of January 1, 2026, subject to certain covenants. The line is subject to an annual fee of $20,000. Interest on outstanding borrowings is payable at prime. No specific collateral is required to be pledged for these borrowings.

[8] Term Loans consist of separate loans with the FHLB of Pittsburgh as follows (dollars in thousands):