Note G - Income Taxes - Reconciliation of Income Tax Provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Income taxes computed at statutory federal income tax rate	$ 749	$ 2,868
State income taxes, net of federal income tax expense	90	174
Permanent differences	8	85
Foreign tax rate differential	18	(47)
Tax credits	(347)	(124)
FDII export sales incentive	0	(46)
Stock based compensation	61	37
Global intangible low-taxed income (GILTI)	355	0
Return to provision - differences	99
Total provision for income taxes	$ 1,033	$ 2,947
Effective Income Tax Rate Reconciliation, Percent	29.10%	21.60%