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Loans - Schedule of Loans by Status (Details) - USD ($) $ in Thousands | Jun. 30, 2026 | Mar. 31, 2026 | Dec. 31, 2025 | Jun. 30, 2025 | Mar. 31, 2025 | Dec. 31, 2024
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Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Loans held for investment, allowance for credit loss | $ 56,459 |  | $ 50,934 |  |  |
Fair Value |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 1,316,592 |  | 1,549,521 |  |  |
Current |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 1,294,636 |  | 1,531,494 |  |  |
Total Delinquent Loans |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 21,956 |  | 18,027 |  |  |
30–59 Days |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 5,356 |  | 4,707 |  |  |
60–89 Days |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 4,929 |  | 4,086 |  |  |
≥ 90 Days |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 11,671 |  | 9,234 |  |  |
Secured loans |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Accumulated accrued interest | 1,064 |  | 1,728 |  |  |
Secured loans | Fair Value |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 614,131 |  | 872,253 |  |  |
Secured loans | Current |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 614,131 |  | 872,253 |  |  |
Secured loans | Total Delinquent Loans |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 0 |  | 0 |  |  |
Secured loans | 30–59 Days |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 0 |  | 0 |  |  |
Secured loans | 60–89 Days |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 0 |  | 0 |  |  |
Secured loans | ≥ 90 Days |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 0 |  | 0 |  |  |
Credit card | Credit card |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Loans held for investment, allowance for credit loss | 54,560 | $ 50,064 | 49,205 | $ 45,515 | $ 42,179 | $ 44,350
Accumulated accrued interest | 10,869 |  | 7,045 |  |  |
Deferred origination costs | 2,833 |  | 8,687 |  |  |
Credit card | Fair Value | Credit card |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 520,830 |  | 501,327 |  |  |
Credit card | Current | Credit card |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 498,949 |  | 483,803 |  |  |
Credit card | Total Delinquent Loans | Credit card |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 21,881 |  | 17,524 |  |  |
Credit card | 30–59 Days | Credit card |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 5,353 |  | 4,650 |  |  |
Credit card | 60–89 Days | Credit card |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 4,928 |  | 3,713 |  |  |
Credit card | ≥ 90 Days | Credit card |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 11,600 |  | 9,161 |  |  |
Commercial and consumer banking: |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 172,503 |  |  |  |  |
Loans on nonaccrual status | 0 |  | 0 |  |  |
Loans held for investment, allowance for credit loss | 1,899 | $ 1,870 | 1,729 | $ 2,323 | $ 2,190 | $ 2,334
Accumulated accrued interest | 630 |  | 689 |  |  |
Commercial and consumer banking: | Commercial real estate |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 164,815 |  |  |  |  |
Commercial and consumer banking: | Commercial and industrial |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 2,772 |  |  |  |  |
Commercial and consumer banking: | Residential real estate and other consumer |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 4,916 |  |  |  |  |
Commercial and consumer banking: | Fair Value |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 181,631 |  | 175,941 |  |  |
Commercial and consumer banking: | Fair Value | Commercial real estate |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 164,815 |  | 160,227 |  |  |
Commercial and consumer banking: | Fair Value | Commercial and industrial |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 3,917 |  | 4,178 |  |  |
Commercial and consumer banking: | Fair Value | Residential real estate and other consumer |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 12,899 |  | 11,536 |  |  |
Commercial and consumer banking: | Current |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 181,556 |  | 175,438 |  |  |
Commercial and consumer banking: | Current | Commercial real estate |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 164,815 |  | 159,854 |  |  |
Commercial and consumer banking: | Current | Commercial and industrial |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 3,846 |  | 4,048 |  |  |
Commercial and consumer banking: | Current | Residential real estate and other consumer |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 12,895 |  | 11,536 |  |  |
Commercial and consumer banking: | Total Delinquent Loans |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 75 |  | 503 |  |  |
Commercial and consumer banking: | Total Delinquent Loans | Commercial real estate |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 0 |  | 373 |  |  |
Commercial and consumer banking: | Total Delinquent Loans | Commercial and industrial |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 71 |  | 130 |  |  |
Commercial and consumer banking: | Total Delinquent Loans | Residential real estate and other consumer |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 4 |  | 0 |  |  |
Commercial and consumer banking: | 30–59 Days |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 3 |  | 57 |  |  |
Commercial and consumer banking: | 30–59 Days | Commercial real estate |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 0 |  | 0 |  |  |
Commercial and consumer banking: | 30–59 Days | Commercial and industrial |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 0 |  | 57 |  |  |
Commercial and consumer banking: | 30–59 Days | Residential real estate and other consumer |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 3 |  | 0 |  |  |
Commercial and consumer banking: | 60–89 Days |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 1 |  | 373 |  |  |
Commercial and consumer banking: | 60–89 Days | Commercial real estate |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 0 |  | 373 |  |  |
Commercial and consumer banking: | 60–89 Days | Commercial and industrial |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 0 |  | 0 |  |  |
Commercial and consumer banking: | 60–89 Days | Residential real estate and other consumer |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 1 |  | 0 |  |  |
Commercial and consumer banking: | ≥ 90 Days |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 71 |  | 73 |  |  |
Commercial and consumer banking: | ≥ 90 Days | Commercial real estate |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 0 |  | 0 |  |  |
Commercial and consumer banking: | ≥ 90 Days | Commercial and industrial |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | 71 |  | 73 |  |  |
Commercial and consumer banking: | ≥ 90 Days | Residential real estate and other consumer |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Total loans | $ 0 |  | $ 0 |  |  |

X
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