Note 5 - Investment Banking and New Issue and Net Trading - Net Trading (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Net realized gains / (losses)- trading inventory | $ 26,023 | $ 19,163 | $ 18,962 |
| Net unrealized gains / (losses)-trading inventory | 2,341 | 1,742 | (2,087) |
| Gains and losses | 28,364 | 20,905 | 16,875 |
| Interest income-trading inventory | 3,845 | 4,375 | 4,250 |
| Interest income-reverse repos | 34,893 | 37,958 | 28,238 |
| Interest income | 38,738 | 42,333 | 32,488 |
| Interest expense-repos | (32,766) | (34,496) | (25,072) |
| Interest expense-margin payable | (2,449) | (3,852) | (6,267) |
| Interest expense | (35,215) | (38,348) | (31,339) |
| Other trading revenue | 15,460 | 11,519 | 12,902 |
| Net trading | $ 47,347 | $ 36,409 | $ 30,926 |
| X | ||||||||||
- Definition Represents interest income (expense) including unrealized gains and losses. No definition available.
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| X | ||||||||||
- Definition Represents interest income from repurchase agreements. No definition available.
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| X | ||||||||||
- Definition Amount of trading revenue, classified as other, during the reporting period. No definition available.
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| X | ||||||||||
- Definition Amount of unrealized and realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in net income (trading). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in net income (trading). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in net income (trading). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Represents the total of interest and dividend income, including any amortization and accretion (as applicable) of discounts and premiums, earned from (1) loans and leases whether held-for-sale or held-in-portfolio; (2) investment securities; (3) federal funds sold; (4) securities purchased under agreements to resell; (5) investments in banker's acceptances, commercial paper, or certificates of deposit; (6) dividend income; or (7) other investments not otherwise specified herein. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of interest expense classified as operating and nonoperating. Includes, but is not limited to, cost of borrowing accounted for as interest expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Gross expenses on securities sold coupled with an agreement to repurchase the same from the same counterparty at a fixed or determinable price within a fixed or variable time period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The aggregate interest expense incurred on short-term borrowings including commercial paper, Federal Home Loan Bank and Federal Reserve Bank advances and other short term borrowings. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of interest income, amortization of premium and accretion of discount, on investment in debt security measured at fair value with change in fair value recognized in net income (trading); classified as operating. No definition available.
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