Note 1 - Nature of Business (Details Textual) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accumulated deficit	$ (376,487)	$ (370,138)
Working Capital Deficiency	146,561
Long-term Debt, Current Maturities, Total	$ 92,998	$ 93,637

Amount of accumulated undistributed earnings (deficit).

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