Note A - Basis of Presentation and Summary of Significant Accounting Policies - Contract Liabilities and Revenue Recognized (Details) - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Contract Liabilities (Customer Deposits), balance	$ 302	$ 317
Contract Liabilities (Customer Deposits), addition	2,761	975
Contract Liabilities (Customer Deposits), revenue recognized	(1,898)	(597)
Contract Liabilities (Customer Deposits), customer refunds	0	0
Contract Liabilities (Customer Deposits), balance	$ 1,165	$ 695