Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Income Statement [Abstract]
Net sales	$ 13,263,855	$ 9,185,756	$ 22,134,130	$ 22,514,692
Cost of goods sold	10,672,228	7,904,692	17,521,991	19,060,409
Gross profit	2,591,627	1,281,064	4,612,139	3,454,283
Operating expenses:
Selling, general, and administrative	769,743	1,276,603	1,618,504	2,580,622
Research and development	1,024,424	715,447	1,919,936	1,472,663
Total operating expenses	1,794,167	1,992,050	3,538,440	4,053,285
Income (loss) from operations	797,460	(710,986)	1,073,699	(599,002)
Other income (loss), net:
Interest income	40,561	30,700	95,591	33,752
Income from governmental subsidy	33	636	4,126	64,824
Other income (loss), net	10,774	7,778	26,366	(6,306)
Total other income (loss), net	51,368	39,114	126,083	92,270
Income (loss) before provision for income taxes	848,828	(671,872)	1,199,782	(506,732)
Income tax provision (benefit)	114,886	(119,010)	175,860	(77,040)
Net income (loss)	733,942	(552,862)	1,023,922	(429,692)
Non-controlling interests in net loss of subsidiary	0	0	0	55,564
Non-controlling interests in (net income) net loss of subsidiary	(153,064)	37,483	(189,106)	37,483
Net income (loss) attributable to Parent Company	$ 580,878	$ (515,379)	$ 834,816	$ (336,645)
Basic income (loss) per share attributable to Parent Company stockholders	$ 0.05	$ (0.05)	$ 0.08	$ (0.03)
Diluted income (loss) per share attributable to Parent Company stockholders	$ 0.05	$ (0.05)	$ 0.08	$ (0.03)
Weighted average common shares outstanding - basic	10,570,203	10,570,203	10,570,203	10,570,203
Weighted average common shares outstanding - diluted	10,708,028	10,570,203	10,708,028	10,570,203
Comprehensive income (loss)
Net income (loss)	$ 733,942	$ (552,862)	$ 1,023,922	$ (429,692)
Translation adjustments	37,067	10,544	18,750	(3,299)
Comprehensive income (loss)	771,009	(542,318)	1,042,672	(432,991)
Comprehensive (income) loss attributable to non-controlling interest	(153,064)	37,483	(189,106)	93,047
Comprehensive income (loss) attributable to controlling interest	$ 617,945	$ (504,835)	$ 853,566	$ (339,944)