Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($)	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Income Statement [Abstract]
Net sales	$ 7,644,929	$ 12,704,474
Cost of goods sold	6,194,450	10,443,063
Gross profit	1,450,479	2,261,411
Operating expenses:
Selling, general, and administrative	1,126,637	1,091,557
Research and development	946,980	802,382
Total operating expenses	2,073,617	1,893,939
Income (loss) from operations	(623,138)	367,472
Other income (loss), net:
Interest income	2,517	2,321
Income from governmental subsidy	68,947	0
Other loss, net	(12,586)	(41,579)
Total other income (loss), net	58,878	(39,258)
Income (loss) before provision for income taxes	(564,260)	328,214
Income tax (benefit) provision	(136,001)	135,122
Net (loss) income	(428,259)	193,092
Non-controlling interests in net loss (income) of subsidiary at 48.2%	(9,033)	69,449
Net (loss) income attributable to Parent Company	$ (437,292)	$ 262,541
Basic earnings (loss) per share attributable to Parent Company stockholders	$ (0.04)	$ 0.03
Diluted earnings (loss) per share attributable to Parent Company stockholders	$ (0.04)	$ 0.02
Weighted average common shares outstanding - basic	10,520,203	10,471,818
Weighted average common shares outstanding - diluted	10,520,203	10,730,267
Comprehensive income
Net (loss) income	$ (428,259)	$ 193,092
Translation adjustments	9,584	61,120
Comprehensive (loss) income	(418,675)	254,212
Comprehensive loss (income) attributable to non-controlling interest	(9,033)	69,449
Comprehensive (loss) income attributable to controlling interest	$ (427,708)	$ 323,661