Note 11 - Stock-based Compensation - Restricted Stock Activity (Details) - Restricted Stock [Member] shares in Thousands	6 Months Ended
	Dec. 31, 2023 $ / shares shares
Outstanding (in shares) | shares	50,671
Outstanding, weighted average grant date fair value (in dollars per share) | $ / shares	$ 33.43
Granted (in shares) | shares	20,000
Granted, weighted average grant date fair value (in dollars per share) | $ / shares	$ 10.1
Vested (in shares) | shares	0
Vested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 0
Canceled or expired (in shares) | shares	0
Canceled or expired (in dollars per share) | $ / shares	$ 0
Outstanding (in shares) | shares	70,671
Outstanding, weighted average grant date fair value (in dollars per share) | $ / shares	$ 26.83