Note 4 - Debt, Net - Long-term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Long-term debt	$ 28,027	$ 34,580
Long-term debt	28,027	34,580
Less: Short term and current portion of long-term debt	(23,456)	(30,846)
Long-term debt, net (non-current)	4,571	3,734
Financing Agreement [Member]
Long-term debt	23,206	30,346
Long-term debt	23,206	30,346
Notes Payable to Banks [Member]
Long-term debt	250	500
Long-term debt	250	500
Convertible Debt [Member]
Long-term debt	4,571	3,734
Long-term debt	$ 4,571	$ 3,734

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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+ Details