Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Income Statement [Abstract]
Net sales	$ 8,351,683	$ 14,352,962	$ 15,996,612	$ 27,057,436
Cost of goods sold	6,963,097	11,455,427	13,157,547	21,898,490
Gross profit	1,388,586	2,897,535	2,839,065	5,158,946
Operating expenses:
Selling, general, and administrative	951,705	1,375,655	2,078,342	2,467,212
Research and development	949,752	895,077	1,896,732	1,697,459
Total operating expenses	1,901,457	2,270,732	3,975,074	4,164,671
Income (loss) from operations	(512,871)	626,803	(1,136,009)	994,275
Other income (loss), net:
Interest income	2,517	2,229	5,034	4,550
Other (loss) income, net	(17,019)	174,564	39,342	132,985
Total other (loss) income, net	(14,502)	176,793	44,376	137,535
Income (loss) before provision for income taxes	(527,373)	803,596	(1,091,633)	1,131,810
Income tax provision	235,121	260,058	99,120	395,180
Net (loss) income	(762,494)	543,538	(1,190,753)	736,630
Non-controlling interests in net loss (income) of subsidiary at 48.2%	31,484	(18,200)	22,451	51,249
Net (loss) income attributable to Parent Company	$ (731,010)	$ 525,338	$ (1,168,302)	$ 787,879
Basic earnings (loss) per share attributable to Parent Company stockholders	$ (0.07)	$ 0.05	$ (0.11)	$ 0.08
Diluted earnings (loss) per share attributable to Parent Company stockholders	$ (0.07)	$ 0.05	$ (0.11)	$ 0.07
Weighted average common shares outstanding - basic	10,520,203	10,495,994	10,520,203	10,483,870
Weighted average common shares outstanding - diluted	10,520,203	10,754,573	10,520,203	10,742,449
Comprehensive income
Net (loss) income	$ (762,494)	$ 543,538	$ (1,190,753)	$ 736,630
Translation adjustments	68,599	(89,732)	78,183	(28,612)
Comprehensive (loss) income	(693,895)	453,806	(1,112,570)	708,018
Comprehensive loss (income) attributable to non-controlling interest	31,484	(18,200)	22,451	51,249
Comprehensive (loss) income attributable to controlling interest	$ (662,411)	$ 435,606	$ (1,090,119)	$ 759,267