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Note 9 - Income Taxes - Deferred Taxes (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Net operating losses	$ 75,727	$ 69,537
Fixed asset basis difference	4,738	4,599
Contributions carryover	29	48
Deferred compensation	157	695
Accrued liabilities and other	796	358
Total deferred tax assets	81,447	75,237
Valuation allowance for deferred tax assets	(81,447)	(75,237)
Net deferred tax asset	$ 0	$ 0

X

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible charitable contribution carryforwards.

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