Variable Interest Entities (Details) - USD ($)	3 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Current Assets
Cash and cash equivalents	$ 82,953,941	$ 153,154,657	$ 72,259,804	$ 150,805,639
Accounts receivable, net	138,984,949		145,190,160
Inventories	146,848,526		162,013,889
Related party receivable	79,380		0
Advances to suppliers	29,136,516		32,713,817
Total Current Assets	401,309,221		414,954,039
Plant, Property and Equipment, Net	24,830,646		26,669,938
Other assets	12,375,236		13,352,645
Intangible Assets, Net	16,758,281		17,881,449
Goodwill	7,560,742		7,874,421
Total Assets	463,098,420		481,000,399
Current Liabilities
Accounts payable	17,349,392		19,004,548
Customer deposits	6,164,137		6,514,619
Amount due to related parties	3,800,160		3,641,945
Total Current Liabilities	80,644,018		84,444,714
Long-term Loan
Total Liabilities	80,644,018		84,444,714
Stockholders' equity	382,454,402	385,571,799	396,555,686	$ 392,547,786
Total Liabilities and Stockholders' Equity	463,098,420		481,000,399
Revenue	50,821,571	57,954,806
Expenses	19,972,147	5,729,786
Net income (loss)	(7,315,799)	9,011,805
Variable Interest Entities [Member]
Current Assets
Cash and cash equivalents	889,411		818,312
Accounts receivable, net	34,488,345		29,933,837
Inventories	19,863,016		19,944,011
Other current assets	961,931		475,001
Related party receivable	79,380		(1,031)
Advances to suppliers	673,998		3,606,384
Total Current Assets	56,956,081		54,776,514
Plant, Property and Equipment, Net	9,122,482		9,753,039
Other assets	216,902		218,549
Intangible Assets, Net	9,627,167		10,212,668
Goodwill	3,080,957		3,208,779
Total Assets	79,003,589		78,169,549
Current Liabilities
Accounts payable	15,764,216		17,250,276
Customer deposits	62,548		256,489
Accrued expenses and other payables	6,779,449		6,243,753
Amount due to related parties	41,178,737		42,680,723
Total Current Liabilities	63,784,950		66,431,241
Long-term Loan	0		0
Total Liabilities	63,784,950		66,431,241
Stockholders' equity	15,218,639		11,738,308
Total Liabilities and Stockholders' Equity	79,003,589		$ 78,169,549
Revenue	15,443,538	17,985,020
Expenses	11,420,496	15,371,814
Net income (loss)	$ 4,023,042	$ 2,613,206