| Pay vs Performance Disclosure | 12 Months Ended |
| Dec. 31, 2022 USD ($) $ / shares | Dec. 30, 2022 | Dec. 31, 2021 USD ($) $ / shares | Dec. 31, 2020 USD ($) $ / shares |
| Pay vs Performance Disclosure [Table] | | | | |
| Pay vs Performance [Table Text Block] | Year Summary Comp. Table Total for CEO - Michael D. Peduzzi (1) ($) Summary Comp. Table Total for CEO - Joseph B. Bower, Jr. (2) ($) Comp. Actually Paid to CEO - Michael D. Peduzzi (1) ($) Comp. Actually Paid to CEO - Joseph B. Bower, Jr. (2) ($) Average Summary Comp. Table Total for Non-CEO NEOs (3) ($) Average Comp. Actually Paid to Non-CEO NEOs (3) ($) Value of Initial Fixed $100 Investment Based On: Net Income (5) ($) Fully-Diluted Earnings Per Share TSR Peer Group TSR (4) 2022 1,110,489 2,432,571 1,117,076 1,612,982 628,263 625,017 79 100 63,188 3.26 2021 3,028,549 1,734,559 557,132 570,275 86 106 57,707 3.16 2020 1,608,420 1,107,862 470,922 402,368 67 77 32,743 1.97 | | | |
| Company Selected Measure Name | Fully-diluted EPS | | | |
| Named Executive Officers, Footnote [Text Block] | (1) Mr. Peduzzi was appointed President and Chief Executive Officer, effective December 31, 2022. (2) Mr. Bower retired from his position as President and Chief Executive Officer, effective December 31, 2022. (3) For fiscal year 2022, the Corporation’s non-CEO NEOs were Tito L. Lima, Richard L. Greslick, Jr, Martin T. Griffith and Leanne D. Kassab. For fiscal years 2021 and 2020 the Corporation’s non-CEO NEOs were Tito L. Lima, Richard L. Greslick, Jr, Martin T. Griffith and Joseph E. Dell, Jr. | | | |
| Peer Group Issuers, Footnote [Text Block] | (4) The TSR peer group utilized is the same peer group disclosed in the Competitive Benchmarking section above. | | | |
| Adjustment To PEO Compensation, Footnote [Text Block] | CEO SCT Total to CAP Reconciliation – Michael D. Peduzzi 2022 SCT Total Compensation $ 1,110,489 SCT Restricted Stock Awards (50,001) Fair Value of New Unvested Equity Awards 55,669 Change in Fair Value of Existing Unvested Equity Awards (6,306) Change in Fair Value of Vesting Equity Awards (105) Dividends on Unvested Equity Awards 2,488 SCT Change in Pension Value & Nonqualified Deferred Compensation Earnings (278,205) Service Cost & Prior Service Cost 283,047 CAP $ 1,117,076 CEO SCT Total to CAP Reconciliation – Joseph B. Bower, Jr. 2022 2021 2020 SCT Total Compensation $ 2,432,571 $ 3,028,549 $ 1,608,420 SCT Restricted Stock Awards (261,010) (272,400) (347,079) Fair Value of New Unvested Equity Awards — 286,041 192,291 Change in Fair Value of Existing Unvested Equity Awards — 76,316 (156,339) Change in Fair Value of Vesting Equity Awards 3,631 19,005 45,515 Fair Value of New Vested Equity Awards 232,476 — — Fair Value as of Prior Year-end of Equity Awards Forfeited (258,031) — — Dividends on Unvested Equity Awards 10,706 6,933 4,842 SCT Change in Pension Value & Nonqualified Deferred Compensation Earnings (902,701) (1,760,834) (467,045) Service Cost & Prior Service Cost 355,340 350,949 227,257 CAP $ 1,612,982 $ 1,734,559 $ 1,107,862 | | | |
| Non-PEO NEO Average Total Compensation Amount | $ 628,263 | | $ 557,132 | $ 470,922 |
| Non-PEO NEO Average Compensation Actually Paid Amount | $ 625,017 | | 570,275 | 402,368 |
| Adjustment to Non-PEO NEO Compensation Footnote [Text Block] | Average Non-CEO NEOs SCT Total to CAP Reconciliation 2022 2021 2020 SCT Total Compensation $ 628,263 $ 557,132 $ 470,922 SCT Restricted Stock Awards (76,257) (66,438) (73,438) Fair Value of New Unvested Equity Awards 84,907 69,940 42,335 Change in Fair Value of Existing Unvested Equity Awards (11,407) 15,104 (31,109) Change in Fair Value of Vesting Equity Awards 2,085 (969) (3,771) Dividends on Unvested Equity Awards 1,971 2,000 1,766 SCT Change in Pension Value & Nonqualified Deferred Compensation Earnings (19,987) (23,198) (17,301) Service Cost & Prior Service Cost 15,442 16,704 12,964 CAP $ 625,017 $ 570,275 $ 402,368 | | | |
| Equity Valuation Assumption Difference, Footnote [Text Block] | For this purpose, the fair value of equity awards is computed in a manner consistent with the fair value methodology used to report Outstanding Equity Awards at Fiscal Year-End. This may result in a difference in the share value input used for the fair value calculation at year-end when compared to the share value used for performance-based share awards at time of award. | | | |
| Compensation Actually Paid vs. Total Shareholder Return [Text Block] | Comparison of Compensation Actually Paid versus Corporation TSR As shown in the chart below, the CAP to our President and Chief Executive Officer and the average CAP to our other NEOs are aligned with our TSR. This is due primarily to performance-based incentive compensation which links payouts to metrics that increase shareholder value, such as fully-diluted EPS and return on equity. | | | |
| Compensation Actually Paid vs. Net Income [Text Block] | Comparison of Compensation Actually Paid versus Net Income The chart below compares the CAP to our President and Chief Executive Officer and the average of the CAP to our other NEOs to net income. As shown in the chart, the CAP to our President and Chief Executive Officer and average of the CAP to our other NEOs has increased in line with increases in our net income. This is because net income is a direct input in the calculation of fully-diluted EPS, one of the most important measures used to link our NEOs’ (including our President and Chief Executive Officer) CAP to our performance. | | | |
| Compensation Actually Paid vs. Company Selected Measure [Text Block] | Comparison of Compensation Actually Paid versus Company-Selected Measure (“CSM”) The chart below compares the CAP to our President and Chief Executive Officer’s and average of the CAP to other NEOs and our CSM, fully-diluted EPS, which shows a very strong relationship between fully-diluted EPS and CAP. | | | |
| Total Shareholder Return Vs Peer Group [Text Block] | Comparison of Corporation TSR versus Peer Group TSR As shown in the chart below, the Corporation’s TSR is less than Corporation’s peer group TSR. | | | |
| Total Shareholder Return Amount | $ 79 | | 86 | 67 |
| Peer Group Total Shareholder Return Amount | 100 | | 106 | 77 |
| Net Income (Loss) | $ 63,188,000 | | $ 57,707,000 | $ 32,743,000 |
| Company Selected Measure Amount | $ / shares | 3.26 | | 3.16 | 1.97 |
| PEO Name | Mr. Peduzzi | Mr. Bower | Mr. Bower | Mr. Bower |
| Measure [Axis]: 1 | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Measure Name | Fully-diluted EPS | | | |
| Measure [Axis]: 2 | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Measure Name | Commercial Loan Revenues | | | |
| Measure [Axis]: 3 | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Measure Name | Efficiency Ratio | | | |
| Measure [Axis]: 4 | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Measure Name | Mortgage, Home Equity, and Consumer Loan Growth | | | |
| Measure [Axis]: 5 | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Measure Name | Wealth & Asset Management revenue | | | |
| Measure [Axis]: 6 | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Measure Name | Return on Equity | | | |
| Michael D. Peduzzi [Member] | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| PEO Total Compensation Amount | $ 1,110,489 | | | |
| PEO Actually Paid Compensation Amount | 1,117,076 | | | |
| Joseph B. Bower, Jr. [Member] | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| PEO Total Compensation Amount | 2,432,571 | | $ 3,028,549 | $ 1,608,420 |
| PEO Actually Paid Compensation Amount | 1,612,982 | | 1,734,559 | 1,107,862 |
| PEO [Member] | Michael D. Peduzzi [Member] | SCT Restricted Stock Awards [Member] | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Adjustment to Compensation Amount | (50,001) | | | |
| PEO [Member] | Michael D. Peduzzi [Member] | Fair Value of New Unvested Equity Awards [Member] | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Adjustment to Compensation Amount | 55,669 | | | |
| PEO [Member] | Michael D. Peduzzi [Member] | Change in Fair Value of Existing Unvested Equity Awards [Member] | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Adjustment to Compensation Amount | (6,306) | | | |
| PEO [Member] | Michael D. Peduzzi [Member] | Change in Fair Value of Vesting Equity Awards [Member] | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Adjustment to Compensation Amount | (105) | | | |
| PEO [Member] | Michael D. Peduzzi [Member] | Dividends on Unvested Equity Awards [Member] | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Adjustment to Compensation Amount | 2,488 | | | |
| PEO [Member] | Michael D. Peduzzi [Member] | SCT Change in Pension Value & Nonqualified Deferred Compensation Earnings [Member] | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Adjustment to Compensation Amount | (278,205) | | | |
| PEO [Member] | Michael D. Peduzzi [Member] | Service Cost & Prior Service Cost [Member] | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Adjustment to Compensation Amount | 283,047 | | | |
| PEO [Member] | Joseph B. Bower, Jr. [Member] | SCT Restricted Stock Awards [Member] | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Adjustment to Compensation Amount | (261,010) | | 272,400 | 347,079 |
| PEO [Member] | Joseph B. Bower, Jr. [Member] | Fair Value of New Unvested Equity Awards [Member] | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Adjustment to Compensation Amount | 0 | | 286,041 | 192,291 |
| PEO [Member] | Joseph B. Bower, Jr. [Member] | Change in Fair Value of Existing Unvested Equity Awards [Member] | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Adjustment to Compensation Amount | 0 | | 76,316 | 156,339 |
| PEO [Member] | Joseph B. Bower, Jr. [Member] | Change in Fair Value of Vesting Equity Awards [Member] | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Adjustment to Compensation Amount | 3,631 | | 19,005 | 45,515 |
| PEO [Member] | Joseph B. Bower, Jr. [Member] | Dividends on Unvested Equity Awards [Member] | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Adjustment to Compensation Amount | 10,706 | | 6,933 | 4,842 |
| PEO [Member] | Joseph B. Bower, Jr. [Member] | SCT Change in Pension Value & Nonqualified Deferred Compensation Earnings [Member] | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Adjustment to Compensation Amount | (902,701) | | 1,760,834 | 467,045 |
| PEO [Member] | Joseph B. Bower, Jr. [Member] | Service Cost & Prior Service Cost [Member] | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Adjustment to Compensation Amount | 355,340 | | 350,949 | 227,257 |
| PEO [Member] | Joseph B. Bower, Jr. [Member] | Fair Value of New Vested Equity Awards [Member] | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Adjustment to Compensation Amount | 232,476 | | 0 | 0 |
| PEO [Member] | Joseph B. Bower, Jr. [Member] | Fair Value as of Prior Year-end of Equity Awards Forfeited [Member] | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Adjustment to Compensation Amount | (258,031) | | 0 | 0 |
| Non-PEO NEO [Member] | SCT Restricted Stock Awards [Member] | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Adjustment to Compensation Amount | (76,257) | | (66,438) | (73,438) |
| Non-PEO NEO [Member] | Fair Value of New Unvested Equity Awards [Member] | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Adjustment to Compensation Amount | 84,907 | | 69,940 | 42,335 |
| Non-PEO NEO [Member] | Change in Fair Value of Existing Unvested Equity Awards [Member] | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Adjustment to Compensation Amount | (11,407) | | 15,104 | (31,109) |
| Non-PEO NEO [Member] | Change in Fair Value of Vesting Equity Awards [Member] | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Adjustment to Compensation Amount | 2,085 | | (969) | (3,771) |
| Non-PEO NEO [Member] | Dividends on Unvested Equity Awards [Member] | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Adjustment to Compensation Amount | 1,971 | | 2,000 | 1,766 |
| Non-PEO NEO [Member] | SCT Change in Pension Value & Nonqualified Deferred Compensation Earnings [Member] | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Adjustment to Compensation Amount | (19,987) | | (23,198) | (17,301) |
| Non-PEO NEO [Member] | Service Cost & Prior Service Cost [Member] | | | | |
| Pay vs Performance Disclosure [Table] | | | | |
| Adjustment to Compensation Amount | $ 15,442 | | $ 16,704 | $ 12,964 |
