Note 12 - Accrued Liabilities - Components of Other Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024	Dec. 31, 2023
Contract liabilities (Note 3)	$ 1,683	$ 721	$ 1,279
Deferred revenue	335	360
Warranty reserve (Note 13)	159	159
Accrued professional fees	0	86
Other accrued liabilities	198	289
Total other accrued liabilities	$ 2,375	$ 1,615