| Line Item | Jun 30, 2026 | Mar 31, 2026 | Dec 31, 2025 | Sep 30, 2025 | Jun 30, 2025 | Mar 31, 2025 | Dec 31, 2024 | Sep 30, 2024 | Jun 30, 2024 | Mar 31, 2024 | Dec 31, 2023 | Sep 30, 2023 | Jun 30, 2023 | Mar 31, 2023 | Dec 31, 2022 | Sep 30, 2022 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Interest and dividend income: | ||||||||||||||||
| Loans, including fees | ||||||||||||||||
| Mortgage-backed securities | ||||||||||||||||
| Other investment securities | ||||||||||||||||
| FHLB stock and other interest earning assets | ||||||||||||||||
| Total interest income | ||||||||||||||||
| Deposits: | ||||||||||||||||
| Demand | ||||||||||||||||
| Savings and club | ||||||||||||||||
| Certificates of deposit | ||||||||||||||||
| Total deposits | ||||||||||||||||
| Borrowings | ||||||||||||||||
| Total interest expense | ||||||||||||||||
| Net interest income | ||||||||||||||||
| Provision for credit losses on loans | ||||||||||||||||
| Net interest income after provision for credit losses on loans | ||||||||||||||||
| Non-interest (loss) income: | ||||||||||||||||
| Fees and service charges | ||||||||||||||||
| BOLI income | ||||||||||||||||
| (Loss) gain on sales of loans | ||||||||||||||||
| Realized and unrealized losses on equity investments | ||||||||||||||||
| Other | ||||||||||||||||
| Total non-interest (loss) income | ||||||||||||||||
| Non-interest expense: | ||||||||||||||||
| Salaries and employee benefits | ||||||||||||||||
| Occupancy and equipment | ||||||||||||||||
| Data processing and communications | ||||||||||||||||
| Professional fees | ||||||||||||||||
| Director fees | ||||||||||||||||
| Regulatory assessments | ||||||||||||||||
| Advertising and promotional | ||||||||||||||||
| Other real estate owned, net | — | — | ||||||||||||||
| Impairment of goodwill | — | — | — | |||||||||||||
| Other | ||||||||||||||||
| Total non-interest expense | ||||||||||||||||
| (Loss) Income before income tax provision | ||||||||||||||||
| Income tax (benefit) provision | ||||||||||||||||
| Net (Loss) Income | ||||||||||||||||
| Preferred stock dividends | ||||||||||||||||
| Net (Loss) Income available to common stockholders | ||||||||||||||||
| Net (Loss) Income per common share-basic and diluted | ||||||||||||||||
| Basic | ||||||||||||||||
| Diluted |