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Other Long-Term Assets - Deposits (Details Textual) - 9 months ended Mar. 31, 2020
USD ($)
CNY (¥)
Other Long-Term Assets - Deposits (Textual)    
Deposits are refundable amount | $ $ 2,800,000  
RMB [Member]    
Other Long-Term Assets - Deposits (Textual)    
Deposits are refundable amount | ¥   ¥ 20,000,000