Note I - Stockholders' Equity - Treasury Stock Repurchases (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Treasury Stock Acquired, Shares (in shares)	164,399	435,080
Treasury Stock Acquired, Average Cost (in dollars per share)
Treasury Stock Acquired, Total Cost	$ 1,503	$ 5,503
Stock Repurchase Plan [Member]
Treasury Stock Acquired, Shares (in shares)	140,812	406,817
Treasury Stock Acquired, Average Cost (in dollars per share)	$ 9.19	$ 12.76
Treasury Stock Acquired, Total Cost	$ 1,294	$ 5,190
Stock Repurchased from Employee for Restricted Stock Vesting [Member]
Treasury Stock Acquired, Shares (in shares)	23,587	28,263
Treasury Stock Acquired, Average Cost (in dollars per share)	$ 8.86	$ 11.08
Treasury Stock Acquired, Total Cost	$ 209	$ 313