Consolidated Statements of Comprehensive Income - USD ($)	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
Net sales	$ 75,072,298	$ 36,468,900
Cost of goods sold	60,547,813	30,729,411
Gross profit	14,524,485	5,739,489
Operating expenses:
Selling, general, and administrative	3,699,859	4,891,365
Research and development	3,746,502	2,955,581
Total operating expenses	7,446,361	7,846,946
Income (loss) from operations	7,078,124	(2,107,457)
Other income, net:
Interest income	159,749	138,462
Income from governmental subsidy	16,282	64,201
Other income, net	44,733	2,291
Total other income, net	220,764	204,954
Income (loss) before provision (benefit) for income taxes	7,298,888	(1,902,503)
Income tax provision (benefit)	1,380,301	(428,745)
Net income (loss)	5,918,587	(1,473,758)
Less: non-controlling interests in net loss of subsidiary at 48.2%	0	(55,564)
Less: non-controlling interests in net income (loss) of subsidiary at 35.8%	189,105	(142,070)
Less: non-controlling interests in net income of subsidiary at 33.7%	178,864	0
Net income (loss) attributable to Parent Company	$ 5,550,618	$ (1,276,124)
Basic earnings (loss) per share attributable to Parent Company stockholders	$ 0.52	$ (0.12)
Diluted earnings (loss) per share attributable to Parent Company stockholders	$ 0.52	$ (0.12)
Weighted average common shares outstanding - basic	10,581,499	10,570,203
Weighted average common shares outstanding - diluted	10,715,979	10,570,203
Comprehensive income (loss)
Net income (loss)	$ 5,918,587	$ (1,473,758)
Translation adjustments	(15,624)	(52,819)
Comprehensive income (loss)	5,902,963	(1,526,577)
Less: comprehensive income (loss) attributable to non-controlling interest	367,969	(197,634)
Comprehensive income (loss) attributable to controlling interest	$ 5,534,994	$ (1,328,943)