Consolidated Statements of Comprehensive Income (Loss) - USD ($)	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
Net sales	$ 30,065,833	$ 48,565,524
Cost of goods sold	24,874,119	39,347,065
Gross profit	5,191,714	9,218,459
Operating expenses:
Selling, general, and administrative	4,511,568	4,898,956
Research and development	3,372,016	3,445,124
Total operating expenses	7,883,584	8,344,080
Income (loss) from operations	(2,691,870)	874,379
Other income, net:
Interest income	10,007	9,650
Income from governmental subsidy	330,856	281,570
Other income, net	(8,541)	(19,845)
Total other income, net	332,322	271,375
Income (loss) before provision for income taxes	(2,359,548)	1,145,754
Income tax provision (benefit)	(186,973)	374,587
Net income (loss)	(2,172,575)	771,167
Non-controlling interests in net loss of subsidiary 48.2%	80,118	102,793
Net income (loss) attributable to Parent Company	$ (2,092,457)	$ 873,960
Basic earnings (loss) per share attributable to Parent Company stockholders	$ (0.20)	$ 0.08
Diluted earnings (loss) per share attributable to Parent Company stockholders	$ (0.20)	$ 0.08
Weighted average common shares outstanding - basic	10,538,610	10,501,730
Weighted average common shares outstanding - diluted	10,538,610	10,660,900
Comprehensive income (loss)
Net income (loss)	$ (2,172,575)	$ 771,167
Translation adjustments	31,822	34,322
Comprehensive income (loss)	(2,140,753)	805,489
Comprehensive loss attributable to non-controlling interest	80,118	102,793
Comprehensive income (loss) attributable to controlling interest	$ (2,060,635)	$ 908,282