SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details - Segment information) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024
Items:
Net sales	$ 11,928,864	$ 17,827,098	$ 24,673,824	$ 31,150,010
Cost of goods sold	(9,894,804)	(14,585,036)	(19,729,994)	(25,836,446)
Selling, general, and administrative expenses	(1,208,525)	(1,519,593)	(2,578,163)	(2,939,566)
Research and development expenses	(776,818)	(927,238)	(1,726,570)	(1,951,550)
Other segment items	417,948	(878,676)	378,104	142,763
Net Income (loss)	$ 466,665	$ (83,445)	$ 1,017,201	$ 565,211