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v3.24.1

Nature of Operations and Summary of Significant Accounting Policies - Narrative (Details) |  | 12 Months Ended |
--- | --- | --- | ---
Jan. 01, 2023 USD ($) | Dec. 31, 2023 USD ($) branch $ / shares | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Accounting Policies [Line Items] |  |  |  |  |
Federal Home Loan Bank stock and Federal Reserve Bank stock |  | $ 6,300,000 | $ 6,500,000 |  |
Impairment of investment in Federal Home Loan Bank stock and Federal Reserve Bank stock |  | 0 | 0 |  |
Shareholders' equity |  | (44,383,000) | (59,583,000) | $ (67,344,000) | $ (63,219,000)
Allowance for credit loss | $ 10,310,000 | 15,925,000 | 10,310,000 | 9,905,000 | 10,584,000
Unfunded commitment reserve | 8,000 |  |  |  |
Increase in deferred tax assets |  |  |  | (1,900,000) |
Deferred tax assets, valuation allowance |  | 0 |  |  |
Deferred tax assets |  | 24,134,000 | 15,527,000 |  |
Unrecognized tax benefits |  | 0 | 0 |  |
Transition adjustment related to adoption of ASC326, net of tax |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |
Shareholders' equity | 11,500,000 |  | 11,510,000 |  |
Allowance for credit loss | 13,001,000 |  | 13,001,000 |  |
Unfunded commitment reserve | 2,737,000 |  |  |  |
Increase in deferred tax assets | $ 4,200,000 |  |  |  |
Accumulated Deficit |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |
Shareholders' equity |  | $ 47,026,000 | 31,337,000 | $ 37,498,000 | $ 42,592,000
Accumulated Deficit | Transition adjustment related to adoption of ASC326, net of tax |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |
Shareholders' equity |  |  | 11,510,000 |  |
Vesting Period One | Restricted Stock |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |
Vesting period |  | 3 years |  |  |
Vesting Period Two | Restricted Stock |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |
Vesting period |  | 4 years |  |  |
Vesting Period Three | Restricted Stock |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |
Vesting period |  | 5 years |  |  |
Core Deposits |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |
Finite-lived intangible asset, useful life |  | 10 years |  |  |
Minimum |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives |  | 3 years |  |  |
Maximum |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives |  | 40 years |  |  |
Federal Home Loan Bank Certificates and Obligations (FHLB) |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |
Stock value par value (in usd per share) | $ / shares |  | $ 100 |  |  |
SBA Loan Fund |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |
Debt securities |  | $ 4,500,000 | $ 4,500,000 |  |
Connecticut |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |
Number of operating branches | branch |  | 8 |  |  |
New York |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |
Number of operating branches | branch |  | 1 |  |  |

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