Note J - Treasury Stock - Treasury Stock Repurchases (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Treasury Stock Acquired, Shares (in shares)	46,795	692
Treasury Stock Acquired, Average Cost (in dollars per share)
Treasury Stock Acquired, Total Cost	$ 497	$ 10
Stock Repurchase Plan [Member]
Treasury Stock Acquired, Shares (in shares)	46,795	0
Treasury Stock Acquired, Average Cost (in dollars per share)	$ 10.62	$ 0
Treasury Stock Acquired, Total Cost	$ 497	$ 0
Stock Repurchased in Connection with Stock Option Exercised [Member]
Treasury Stock Acquired, Average Cost (in dollars per share)	$ 0	$ 0
Shares acquired in connection with stock option exercises, shares (in shares)	0	0
Shares acquired in connection with stock option exercises, cost	$ 0	$ 0
Stock Repurchased from Employee for Restricted Stock Vesting [Member]
Treasury Stock Acquired, Shares (in shares)	0	692
Treasury Stock Acquired, Average Cost (in dollars per share)	$ 0	$ 14.20
Treasury Stock Acquired, Total Cost	$ 0	$ 10