Note 13 - Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2022
Effective Income Tax Rate Reconciliation, Percent	(0.20%)	0.40%
Income Taxes Paid, Net	$ 50	$ 152
Payroll Related Tax Credit Utilized	600
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	4,300
Unrecognized Tax Benefits	0	0
Other Current Liabilities [Member]
Payroll Related Credits COVID 19			$ 1,300
Domestic Tax Jurisdiction [Member]
Operating Loss Carryforwards	269,300	241,700
Operating Loss Carryforwards, Subject to Expiration	31,000	31,100
Operating Loss Carryforwards, Not Subject to Expiration	237,900	210,600
State and Local Jurisdiction [Member]
Operating Loss Carryforwards		$ 150,300
Operating Loss Carryforwards, Subject to Expiration	200,800
Approximation [Member]
Income Taxes Paid, Net	$ 200