Note 11 - Stock-based Compensation - Stock Option Activity Summary (Details) shares in Thousands	6 Months Ended
	Dec. 31, 2023 $ / shares shares
Outstanding (in shares) | shares	38,166
Outstanding, weighted average grant date fair value (in dollars per share) | $ / shares	$ 27.34
Granted (in shares) | shares	116,790
Granted, weighted average grant date fair value (in dollars per share) | $ / shares	$ 10.16
Exercised (in shares) | shares	0
Exercised, weighted average grant date fair value (in dollars per share) | $ / shares	$ 0
Canceled or expired (in shares) | shares	(46)
Canceled or expired, weighted average grant date fair value (in dollars per share) | $ / shares	$ 138.06
Outstanding (in shares) | shares	154,910
Outstanding, weighted average grant date fair value (in dollars per share) | $ / shares	$ 14.36