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Note 3 - Long-term Debt (Details Textual) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2024 | Mar. 31, 2026 | Mar. 31, 2025 | Dec. 31, 2025 | Nov. 13, 2019
Interest Expense, Operating and Nonoperating |  | $ 1,136 | $ 1,163 |  |
Amortization of Debt Discount (Premium) |  | 118 | $ 294 |  |
Accrued Liabilities, Current |  | 7,746 |  | $ 9,408 |
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] | Secured Overnight Financing Rate (SOFR) [Member] |  |  |  |
Liability, Interest and Exit Fees [Member] |  |  |  |  |
Accrued Liabilities, Current |  | $ 431 |  | $ 425 |
SWK Credit Agreement [Member] | SWK Holdings Corporation [Member] |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  | $ 10,000
The Amended Agreement [Member] | SWK Holdings Corporation [Member] |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 30,000 |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 6.75% |  |  |  |
Debt Instrument, Periodic Payment, Principal | $ 3,000 |  |  |  |
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid | $ 9,000 |  |  |  |
Debt Instrument, Exit Fee as a Percentage of Outstanding Amounts | 5.00% |  |  |  |

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