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Note 13 - Equity-based Compensation - Stock Options Outstanding (Details)
$ / shares in Units, shares in Thousands, $ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2023
USD ($)
$ / shares
shares
Dec. 31, 2022
USD ($)
$ / shares
shares
Outstanding awards (in shares) 132  
Outstanding, weighted-average exercise price (in dollars per share) | $ / shares $ 37.99  
Outstanding, weighted-average remaining contractual life (Year) 7 years 10 months 24 days 7 years 6 months
Outstanding, aggregate intrinsic value | $ $ 21 $ 69
Options granted (in shares) 42  
Options granted, weighted-average exercise price (in dollars per share) | $ / shares $ 1.67  
Options forfeited/cancelled (in shares) (16)  
Options forfeited/cancelled, weighted-average exercise price (in dollars per share) | $ / shares $ 63.10  
Outstanding awards (in shares) 151 132
Outstanding, weighted-average exercise price (in dollars per share) | $ / shares $ 26.92 $ 37.99
Vested and expected to vest (in shares) 120  
Vested and expected to vest, weighted-average exercise price (in dollars per share) | $ / shares $ 33.13  
Vested and expected to vest, weighted-average remaining contractual life (Year) 7 years 9 months 18 days  
Vested and expected to vest, aggregate intrinsic value | $ $ 4  
Vested (in shares) 56  
Vested, weighted-average exercise price (in dollars per share) | $ / shares $ 63.79  
Vested, weighted-average remaining contractual life (Year) 5 years 10 months 24 days  
Exercisable (in shares) 56  
Exercisable, weighted-average exercise price (in dollars per share) | $ / shares $ 63.79  
Exercisable, weighted-average remaining contractual life (Year) 5 years 10 months 24 days  
Restricted Stock Units (RSUs) [Member]    
Restricted stock units granted (in shares) 5  
Restricted stock units vested (in shares) (5)  
Restricted stock units cancelled (in shares) (7)