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Note 2 - Fair Value Measurements (Details Textual) - USD ($) $ in Thousands	Jan. 31, 2025	Sep. 15, 2022
The 2025 Note Warrants [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)	805,263
The 2022 Note [Member] | Convertible Debt [Member]
Debt Instrument, Face Amount		$ 10,500
The 2025 Note [Member]
Debt Instrument, Face Amount	$ 3,240
The 2025 Note [Member] | Convertible Debt [Member]
Debt Instrument, Face Amount	$ 3,000

X

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

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- Definition

Face (par) amount of debt instrument at time of issuance.

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