Note 5 - Net Trading - Net Trading (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Net realized gains (losses) - trading inventory	$ 1,247	$ 3,267	$ 6,662	$ 10,717
Net unrealized gains (losses) - trading inventory	3,762	632	4,728	(2,274)
Net gains and losses	5,009	3,899	11,390	8,443
Interest income- trading inventory	1,103	918	2,510	1,653
Interest income-reverse repos	11,308	6,402	19,187	12,532
Interest income	12,411	7,320	21,697	14,185
Interest expense-repos	(10,240)	(5,630)	(17,335)	(11,085)
Interest expense-margin payable	(1,007)	(1,416)	(2,403)	(2,866)
Interest expense	(11,247)	(7,046)	(19,738)	(13,951)
Other trading revenue	2,625	3,243	5,297	6,949
Net trading	$ 8,798	$ 7,416	$ 18,646	$ 15,626

Represents interest income (expense) including unrealized gains and losses.

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Represents interest income from repurchase agreements.

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Amount of trading revenue, classified as other, during the reporting period.

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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).

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Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in net income (trading).

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Amount of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in net income (trading).

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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.

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Amount of interest expense classified as operating and nonoperating. Includes, but is not limited to, cost of borrowing accounted for as interest expense.

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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.

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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.

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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.

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