v3.25.1

Note 16 - Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Deferred Tax Assets, Valuation Allowance	$ 80,429	$ 73,416
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	7,013	9,075
Deferred Tax Assets, Net of Valuation Allowance	1,459	1,032
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	$ 0	0
Domestic Tax Jurisdiction [Member]
Open Tax Year	2018
Domestic Tax Jurisdiction [Member] | Research Tax Credit Carryforward [Member]
Tax Credit Carryforward, Amount	$ 422	377
Domestic Tax Jurisdiction [Member] | Internal Revenue Service (IRS) [Member]
Operating Loss Carryforwards	$ 229,631	$ 217,643

X

- Definition

Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

+ References

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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Tax year that remains open to examination under enacted tax laws, in YYYY format.

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Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

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