Consolidated Statements of Comprehensive Income (Unaudited) - USD ($)	3 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Income Statement [Abstract]
Net sales	$ 12,744,960	$ 13,322,912
Cost of goods sold	(9,835,190)	(11,251,410)
Gross profit	2,909,770	2,071,502
Operating expenses:
Selling, general and administrative	1,369,638	1,419,973
Research and development	949,752	1,024,312
Total operating expenses	2,319,390	2,444,285
Income (loss) from operations	590,380	(372,783)
Other income, net:
Interest income	151,626	181,804
Gain from the forgiveness of accrued liabilities	15,650	247,592
(Loss) gain from foreign currency transactions	(290,870)	451,947
Other income, net	126,398	187,976
Total other income, net	2,804	1,069,319
Income before provision for income taxes	593,184	696,536
Income tax provision	42,648	47,880
Net Income	550,536	648,656
Less: noncontrolling interests in net (loss) income of subsidiary at 33.7%	(105,164)	133,469
Less: noncontrolling interests in net income of subsidiary at 40.0%	15,222	0
Net Income attributable to Parent Company	$ 640,478	$ 515,187
Earnings per share attributable to Parent Company stockholders - basic	$ 0.05	$ 0.04
Earnings per share attributable to Parent Company stockholders - diluted	$ 0.05	$ 0.04
Weighted average common shares outstanding - basic	11,784,280	11,784,280
Weighted average common shares outstanding - diluted	11,803,465	11,807,962
Comprehensive income
Net income	$ 550,536	$ 648,656
Translation adjustments	(86,760)	128,124
Comprehensive income	463,776	776,780
Less: comprehensive (loss) income attributable to non-controlling interest	(89,942)	133,469
Less: foreign exchange translation attributable to non-controlling interest	(29,201)	43,124
Comprehensive income attributable to controlling interest	$ 582,919	$ 600,187