Variable Interest Entities (Details) - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018	Jun. 30, 2018	Jun. 30, 2017
Current Assets
Cash and cash equivalents	$ 69,242,037	$ 153,639,728	$ 69,242,037	$ 153,639,728	$ 150,805,639	$ 123,050,548
Accounts receivable, net	154,557,359		154,557,359		174,460,937
Inventories	132,579,212		132,579,212		53,784,814
Related party receivable	0		0		235,551
Advances to suppliers	51,055,495		51,055,495		25,194,463
Total Current Assets	412,321,835		412,321,835		407,426,651
Plant, Property and Equipment, Net	28,120,511		28,120,511		30,894,683
Other assets	14,164,932		14,164,932		15,885,696
Intangible Assets, Net	18,736,458		18,736,458		20,317,914
Goodwill	8,058,302		8,058,302		8,166,467
Total Assets	481,676,201		481,676,201		482,985,960
Current Liabilities
Short-term loan	4,470,000		4,470,000		4,726,300
Accounts payable	9,436,035		9,436,035		27,128,921
Customer deposits	7,793,572		7,793,572		7,251,967
Amount due to related parties	3,666,440		3,666,440		3,271,619
Total Current Liabilities	70,430,082		70,430,082		83,066,274
Total Liabilities	78,018,283		78,018,283		90,438,173
Stockholders' equity	403,657,917		403,657,917		392,547,787
Total Liabilities and Stockholders' Equity	481,676,201		481,676,201		482,985,960
Revenue	108,120,570	82,550,883	218,329,839	208,278,859
Expenses	13,707,663	11,533,912	27,406,921	32,174,261
Net income (loss)	5,117,899	7,627,033	16,635,439	20,547,967
Variable Interest Entities [Member]
Current Assets
Cash and cash equivalents	970,474		970,474		982,312
Accounts receivable, net	22,545,084		22,545,084		38,295,505
Inventories	23,002,341		23,002,341		21,133,970
Other current assets	648,132		648,132		988,051
Related party receivable	0		0		(359,005)
Advances to suppliers	4,848,280		4,848,280		848,458
Total Current Assets	52,014,311		52,014,311		61,889,291
Plant, Property and Equipment, Net	10,271,628		10,271,628		11,206,667
Other assets	223,652		223,652		226,654
Intangible Assets, Net	10,641,139		10,641,139		11,348,180
Goodwill	3,283,709		3,283,709		3,319,732
Total Assets	76,434,439		76,434,439		87,990,524
Current Liabilities
Short-term loan
Accounts payable	7,833,312		7,833,312		25,584,614
Customer deposits	1,021,889		1,021,889		841,694
Accrued expenses and other payables	5,297,819		5,297,819		3,896,340
Amount due to related parties	43,257,584		43,257,584		43,339,286
Total Current Liabilities	57,410,604		57,410,604		73,661,934
Total Liabilities	57,410,604		57,410,604		73,661,934
Stockholders' equity	19,023,835		19,023,835		14,328,590
Total Liabilities and Stockholders' Equity	76,434,439		76,434,439		$ 87,990,524
Revenue	18,875,808	16,127,953	49,772,242	47,205,271
Expenses	16,638,610	13,749,981	45,582,052	39,340,523
Net income (loss)	$ 2,237,198	$ 940,622	$ 4,190,190	$ 1,140,302