Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Income Statement [Abstract]
Net sales	$ 17,827,098	$ 8,847,779	$ 31,150,010	$ 18,503,325
Cost of goods sold	(14,585,036)	(8,010,704)	(25,836,446)	(16,153,090)
Gross profit	3,242,062	837,075	5,313,564	2,350,235
Operating expenses:
Selling, general and administrative	1,519,593	1,540,162	2,939,566	2,770,884
Research and development	927,238	852,854	1,951,550	1,719,809
Total operating expenses	2,446,831	2,393,016	4,891,116	4,490,693
Income (loss) from operations	795,231	(1,555,941)	422,448	(2,140,458)
Other (loss) income, net:
Interest income	173,048	151,753	354,852	405,768
Income from governmental subsidy	0	5,466	0	16,566
Gain from the forgiveness of accounts payable and accrued liabilities	0	0	247,592	0
(Loss) gain from foreign currency transactions	(1,008,538)	347,446	(556,591)	148,472
Other income, net	124,541	186,460	312,517	317,575
Total other (loss) income, net	(710,949)	691,125	358,370	888,381
Income (loss) before provision (benefit) for income taxes	84,282	(864,816)	780,818	(1,252,077)
Income tax provision (benefit)	167,727	(215,157)	215,607	(265,217)
Net (loss) income	(83,445)	(649,659)	565,211	(986,860)
Less: noncontrolling interests in net (loss) income of subsidiary at 33.7%	(308,804)	114,956	(175,335)	35,451
Less: noncontrolling interests in net loss of subsidiary at 40.0%	(3,381)	0	(3,381)	0
Net income (loss) attributable to Parent Company	$ 228,740	$ (764,615)	$ 743,927	$ (1,022,311)
Earnings (loss) per share attributable to Parent Company stockholders - basic	$ 0.02	$ (0.06)	$ 0.06	$ (0.09)
Earnings (loss) per share attributable to Parent Company stockholders - diluted	$ 0.02	$ (0.06)	$ 0.06	$ (0.09)
Weighted average common shares outstanding - basic	11,784,280	11,784,280	11,784,280	11,784,280
Weighted average common shares outstanding - diluted	11,838,850	11,784,280	11,823,672	11,784,280
Comprehensive income (loss)
Net (loss) income	$ (83,445)	$ (649,659)	$ 565,211	$ (986,860)
Translation adjustments	(264,428)	139,112	(136,304)	65,643
Comprehensive (loss) income	(347,873)	(510,547)	428,907	(921,217)
Less: comprehensive (loss) income attributable to non-controlling interest	(312,185)	114,956	(178,716)	35,451
Less: foreign exchange translation attributable to non-controlling interest	(89,000)	0	(45,876)	0
Comprehensive income (loss) attributable to controlling interest	$ 53,312	$ (625,503)	$ 653,499	$ (956,668)