Note 12 - Share-based Compensation - Summary of Restricted Stock Units Outstanding (Details) shares in Thousands	12 Months Ended
	Dec. 31, 2022 $ / shares shares
Non-vested, Shares (in shares) | shares	7,104
Non-vested, Weighted Average Grant Date Fair Value Per Share (in dollars per share) | $ / shares	$ 3.31
Vested, Shares (in shares) | shares	(1,261)
Vested, Weighted Average Grant Date Fair Value Per Share (in dollars per share) | $ / shares	$ 6.17
Restricted Stock Units (RSUs) [Member]
Granted, Shares (in shares) | shares	6,106
Granted, Weighted Average Grant Date Fair Value Per Share (in dollars per share) | $ / shares	$ 6.52
Forfeited, Shares (in shares) | shares	(1,645)
Forfeited, Weighted Average Grant Date Fair Value Per Share (in dollars per share) | $ / shares	$ 3.61
Non-vested, Shares (in shares) | shares	10,304
Non-vested, Weighted Average Grant Date Fair Value Per Share (in dollars per share) | $ / shares	$ 4.82