v3.26.1
Note 8 - Fair Value Measurements - Fair Value of Financial Instruments (Details) - Fair Value, Recurring [Member] - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Cash and cash equivalents $ 322,713 $ 353,413
Restricted cash 6,082 5,354
Investment available for sale 11,574 12,347
Fair Value, Inputs, Level 1 [Member]    
Cash and cash equivalents 322,713 353,413
Restricted cash 6,082 5,354
Investment available for sale 0 0
Fair Value, Inputs, Level 2 [Member]    
Cash and cash equivalents 0 0
Restricted cash 0 0
Investment available for sale 0 0
Fair Value, Inputs, Level 3 [Member]    
Cash and cash equivalents 0 0
Restricted cash 0 0
Investment available for sale $ 11,574 $ 12,347