Note 9 - Stock-based Compensation- Restricted Stock Activity (Details) - Restricted Stock [Member] shares in Thousands	9 Months Ended
	Sep. 30, 2026 $ / shares shares
Unvested, balance (in shares) | shares	298,538
Unvested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 7.37
Granted, balance (in shares) | shares	40,549
Granted, weighted average grant date fair value (in dollars per share) | $ / shares	$ 3.45
Vested, balance (in shares) | shares	(229,326)
Vested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 6.36
Canceled and forfeited, balance (in shares) | shares	(20,594)
Canceled and forfeited, weighted average grant date fair value (in dollars per share) | $ / shares	$ 5.67
Unvested, balance (in shares) | shares	89,167
Unvested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 8.59