Note 14 - Income Taxes - Provision for Taxes (Details) - USD ($)	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
U.S. operations	$ 356,298	$ 1,062,895
Foreign operations	72,691	149,505
Total	428,989	1,212,400
Federal	299,707	741,200
States	78,723	242,393
Foreign	87,033	177,118
Total current	465,463	1,160,711
Federal	(22,508)	69,422
States	376	9,880
Foreign	(14,342)	(27,613)
Total deferred	$ (36,474)	$ 51,689