Note A - Basis of Presentation and Summary of Significant Accounting Policies - Contract Liabilities and Revenue Recognized (Details) - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Contract Liabilities (Customer Deposits), balance	$ 302	$ 317
Contract Liabilities (Customer Deposits), addition	3,700	1,406
Contract Liabilities (Customer Deposits), revenue recognized	(2,479)	(1,336)
Contract Liabilities (Customer Deposits), customer refunds	0	0
Contract Liabilities (Customer Deposits), balance	$ 1,523	$ 387