Note 10 - Common Stock Incentive, Stock Purchase Plans, and Other Compensation Plans Compensation - Restricted Stock Activity (Details) - Restricted Stock [Member] - $ / shares shares in Thousands	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Outstanding (in shares)	75,873	67,423
Outstanding, weighted average grant date fair value (in dollars per share)	$ 39.00	$ 61.50
Granted (in shares)	2,150	40,000
Granted, weighted average grant date fair value (in dollars per share)	$ 11.83	$ 18.90
Vested (in shares)	(26,742)	(23,090)
Vested, weighted average grant date fair value (in dollars per share)	$ 46.68	$ 62.40
Canceled or expired (in shares)	(610)	(8,461)
Canceled or expired (in dollars per share)	$ 60.60	$ 60.60
Granted (in shares)	2,150	40,000
Granted (in dollars per share)	$ 11.83	$ 18.90
Outstanding (in shares)	50,671	75,873
Outstanding, weighted average grant date fair value (in dollars per share)	$ 33.43	$ 39.00