Consolidated Statements of Comprehensive Income - USD ($)	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Net sales	$ 36,468,900	$ 30,065,833
Cost of goods sold	30,729,411	24,874,119
Gross profit	5,739,489	5,191,714
Operating expenses:
Selling, general, and administrative	4,891,365	4,511,568
Research and development	2,955,581	3,372,016
Total operating expenses	7,846,946	7,883,584
Loss from operations	(2,107,457)	(2,691,870)
Other income, net:
Interest income	138,462	10,007
Income from governmental subsidy	64,201	330,856
Other income, net	2,291	(8,541)
Total other income, net	204,954	332,322
Loss before provision (benefit) for income taxes	(1,902,503)	(2,359,548)
Income tax benefit	(428,745)	(186,973)
Net loss	(1,473,758)	(2,172,575)
Non-controlling interests in net loss of subsidiary 48.2%	55,564	80,118
Non-controlling interests in net loss of subsidiary at 35.8%	142,070	0
Net loss attributable to Parent Company	$ (1,276,124)	$ (2,092,457)
Basic earnings (loss) per share attributable to Parent Company stockholders	$ (0.12)	$ (0.20)
Diluted earnings (loss) per share attributable to Parent Company stockholders	$ (0.12)	$ (0.20)
Weighted average common shares outstanding - basic	10,570,203	10,538,610
Weighted average common shares outstanding - diluted	10,570,203	10,538,610
Comprehensive loss
Net loss	$ (1,473,758)	$ (2,172,575)
Translation adjustments	(52,819)	31,822
Comprehensive loss	(1,526,577)	(2,140,753)
Comprehensive loss attributable to non-controlling interest	197,634	80,118
Comprehensive loss attributable to controlling interest	$ (1,328,943)	$ (2,060,635)