v3.26.1
Note 3 - Revenue Recognition (Details Textual) - Customer Warrant [Member] - Subsidiary of Amazon [Member] - USD ($)
$ / shares in Units, $ in Millions
 6 Months Ended
Mar. 13, 2025
Jun. 30, 2026
Dec. 31, 2025
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) 7,945,399    
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) $ 23.6956    
Warrants and Rights Outstanding, Term (Year) 10 years    
Class of Warrant or Right, Exercisable at Issuance, Number of Securities Called by Warrants or Rights (in shares) 1,324,233    
Class of Warrant or Right, Unvested, Number of Securities Called by Warrants or Rights (in shares) 6,621,166    
Class of Warrants or Rights, Vesting Covenant, Purchases of Products Benchmark $ 4,000.0 $ 84.8  
Class of Warrant or Right, Vested at Issuance, Grant Date Fair Value (in dollars per share) $ 12.64    
Class of Warrant or Right, Reduction to Purchases of Products Benchmark   2.1  
Class of Warrant or Right, Vested, Aggregate Grant Date Fair Value, Current   3.7 $ 1.0
Class of Warrant or Right, Vested, Aggregate Grant Date Fair Value, Noncurrent   $ 12.6 $ 15.0
Class of Warrant or Right, Vested (in shares) 1,324,233 1,324,233