Description of Plan - Contributions (Details) - Bank First Retirement Plan - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
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| Description of Plan | ||
| Automatic deferral rate | 6.00% | |
| Automatic yearly increases of deferral rate | 1.00% | |
| Maximum deferral rate | 15.00% | |
| Discretionary match | 60.00% | 60.00% |
| Participants' eligible compensation for matching contribution | 6.00% | 6.00% |
| Matching contributions | $ 1,505,060 | $ 1,414,061 |
| Profit-sharing contribution | $ 0 | $ 0 |
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- Definition Percentage of annual increase in deferral rate in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). No definition available.
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- Definition Amount of increase in net asset available for benefit from cash contribution from employer of participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of increase in net asset available for benefit from noncash contribution from employer of participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Percentage of employer matching contribution on eligible participant contribution to employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Percentage of participant compensation eligible for employer matching contribution for participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Percentage of eligible compensation contributed for participant automatically enrolled in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Percentage of maximum pretax annual compensation that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), is permitted to contribute to total pretax annual compensation. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Details
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