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Note 4 - Prepaid Expenses and Other Current Assets - Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Metals to be used in research and development	$ 1,826	$ 1,909
Research and development tax credits receivable	1,442	1,195
Other	832	568
Total prepaid expenses and other current assets	$ 4,100	$ 3,672

X

- Definition

Amount of asset from government assistance.

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- Definition

Amount of current assets classified as other.

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Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.

+ References

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Amount of consideration paid in advance for supplies that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

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