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Note 10 - Stock-based Compensation - Phantom Stock Units (Details) - Phantom Share Units (PSUs) [Member]
3 Months Ended
Mar. 31, 2025
shares
Equity Awards [Member]  
Restricted Stock Units Outstanding (in shares) 1,511,660
Granted, shares (in shares) 0
Vested, shares (in shares) 93,730
Canceled or forfeited, shares (in shares) 24,721
Restricted Stock Units Outstanding (in shares) 1,393,209
Liability Awards [Member]  
Restricted Stock Units Outstanding (in shares) 210,416
Granted, shares (in shares) 0
Vested, shares (in shares) 0
Canceled or forfeited, shares (in shares) 3,589
Restricted Stock Units Outstanding (in shares) 206,827