Note J - Treasury Stock - Treasury Stock Repurchases (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Treasury Stock Acquired, Shares (in shares)	0	68,570	0	115,365
Treasury Stock Acquired, Average Cost (in dollars per share)
Treasury Stock Acquired, Total Cost		$ 562		$ 1,059
Stock Repurchase Plan [Member]
Treasury Stock Acquired, Shares (in shares)		68,570		115,365
Treasury Stock Acquired, Average Cost (in dollars per share)		$ 8.19		$ 9.18
Treasury Stock Acquired, Total Cost		$ 562		$ 1,059
Stock Repurchased from Employee for Restricted Stock Vesting [Member]
Treasury Stock Acquired, Shares (in shares)		0		0
Treasury Stock Acquired, Average Cost (in dollars per share)		$ 0		$ 0
Treasury Stock Acquired, Total Cost		$ 0		$ 0