First US Bancshares, Inc. (Parent Company Only) Financial Information - Statements of Operations (Detail) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
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, 2025 |
Dec. 31, 2024 |
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| Income: | ||||||||||
| Total income | $ 1,140 | $ 1,232 | ||||||||
| Expense | 5,536 | 4,754 | ||||||||
| Net income (loss) | $ 2,129 | $ 1,936 | $ 155 | $ 1,772 | $ 1,714 | $ 2,222 | $ 2,127 | $ 2,107 | 5,992 | 8,170 |
| FUSB [Member] | ||||||||||
| Income: | ||||||||||
| Dividend income, First US Bank | 8,348 | 5,541 | ||||||||
| Total income | 8,348 | 5,541 | ||||||||
| Expense | 1,488 | 1,450 | ||||||||
| Gain before equity in undistributed income of subsidiaries | 6,860 | 4,091 | ||||||||
| Equity in undistributed income of subsidiaries | (868) | 4,079 | ||||||||
| Net income (loss) | $ 5,992 | $ 8,170 | ||||||||
| X | ||||||||||
- Definition Equity in undistributed earnings of subsidiary. No definition available.
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- Definition Income loss before equity in undistributed income of subsidiaries. No definition available.
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- Definition Amount of operating dividend income on securities. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Details
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