Cover Page - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Mar. 06, 2026 |
Jun. 30, 2025 |
|
| Document Information [Line Items] | |||
| Document Type | 10-K/A | ||
| Amendment Flag | true | ||
| Amendment Description | This Amendment to the Annual Report on Form 10-K of Princeton Bancorp, Inc. for the fiscal year ended December 31, 2025, originally filed on March 13, 2026 (the “Original Filing”), amends Item 15 of Part IV of the Original Filing to include exhibit 97.1, which was inadvertently omitted. Except as described above, no other changes have been made to the Original Filing, and this Amendment does not modify, amend or update in any way any of the financial or other information contained in the Original Filing. This Amendment does not reflect events that may have occurred subsequent to the filing date of the Original Filing. | ||
| Document Annual Report | true | ||
| Document Transition Report | false | ||
| Document Period End Date | Dec. 31, 2025 | ||
| Document Fiscal Year Focus | 2025 | ||
| Document Fiscal Period Focus | FY | ||
| Entity Registrant Name | PRINCETON BANCORP, INC. | ||
| Entity Central Index Key | 0001913971 | ||
| Current Fiscal Year End Date | --12-31 | ||
| Entity Incorporation, State or Country Code | PA | ||
| Entity File Number | 001-41589 | ||
| Entity Tax Identification Number | 88-4268702 | ||
| Entity Address, Address Line One | 183 Bayard Lane | ||
| Entity Address, City or Town | Princeton | ||
| Entity Address, State or Province | NJ | ||
| Entity Address, Postal Zip Code | 08540 | ||
| City Area Code | 609 | ||
| Local Phone Number | 921-1700 | ||
| Entity Current Reporting Status | Yes | ||
| Entity Interactive Data Current | Yes | ||
| Entity Filer Category | Accelerated Filer | ||
| Entity Small Business | true | ||
| Entity Emerging Growth Company | false | ||
| Entity Shell Company | false | ||
| Entity Well-known Seasoned Issuer | No | ||
| Entity Voluntary Filers | No | ||
| Title of 12(b) Security | Common stock, no par value | ||
| Trading Symbol | BPRN | ||
| Security Exchange Name | NASDAQ | ||
| Entity Common Stock, Shares Outstanding | 6,788,551 | ||
| ICFR Auditor Attestation Flag | true | ||
| Entity Public Float | $ 164.0 | ||
| Document Financial Statement Error Correction [Flag] | false | ||
| Documents Incorporated by Reference [Text Block] | DOCUMENTS INCORPORATED BY REFERENCE The registrant intends to file a definitive Proxy Statement for the Annual Meeting of Shareholders scheduled to be held April 21, 2026. The information required by Part III of this Form 10-K is incorporated by reference to such Proxy Statement. |