Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

DESCRIPTION OF BUSINESS, ORGANIZATION AND SIGNIFICANT CONCENTRATIONS AND RISKS - Country Risk and Cash Concentration (Details)

v3.19.1
DESCRIPTION OF BUSINESS, ORGANIZATION AND SIGNIFICANT CONCENTRATIONS AND RISKS - Country Risk and Cash Concentration (Details)
Dec. 31, 2018
USD ($)
Dec. 31, 2018
CNY (¥)
Dec. 31, 2017
HKD ($)
Dec. 31, 2017
CNY (¥)
Significant Concentrations and Risks        
Cash and cash equivalents balances $ 27,719,634 ¥ 190,586,342   ¥ 53,478,494
PRC | Maximum        
Significant Concentrations and Risks        
Amount insured by government authority       500,000
HKSAR | Maximum        
Significant Concentrations and Risks        
Amount insured by government authority | $     $ 500,000  
Cash and cash equivalents | Credit concentration risk, customers or financial institutions        
Significant Concentrations and Risks        
Cash and cash equivalents balances   190,586,342   53,478,494
Cash and cash equivalents | Credit concentration risk, customers or financial institutions | PRC        
Significant Concentrations and Risks        
Cash and cash equivalents balances   143,760,681   34,657,382
Cash and cash equivalents | Credit concentration risk, customers or financial institutions | PRC | Denominated in Renminbi ("RMB")        
Significant Concentrations and Risks        
Cash and cash equivalents balances   143,760,647   34,656,651
Cash and cash equivalents | Credit concentration risk, customers or financial institutions | PRC | Denominated in U.S. Dollar ("USD")        
Significant Concentrations and Risks        
Cash and cash equivalents balances   34   731
Cash and cash equivalents | Credit concentration risk, customers or financial institutions | HKSAR        
Significant Concentrations and Risks        
Cash and cash equivalents balances   46,825,661   18,821,112
Cash and cash equivalents | Credit concentration risk, customers or financial institutions | HKSAR | Denominated in Renminbi ("RMB")        
Significant Concentrations and Risks        
Cash and cash equivalents balances   672   503
Cash and cash equivalents | Credit concentration risk, customers or financial institutions | HKSAR | Denominated in Hong Kong Dollar ("HKD")        
Significant Concentrations and Risks        
Cash and cash equivalents balances   8,064,121   9,725,249
Cash and cash equivalents | Credit concentration risk, customers or financial institutions | HKSAR | Denominated in U.S. Dollar ("USD")        
Significant Concentrations and Risks        
Cash and cash equivalents balances   38,358,069   8,922,062
Cash and cash equivalents | Credit concentration risk, customers or financial institutions | HKSAR | Denominated in Great Britain Pound        
Significant Concentrations and Risks        
Cash and cash equivalents balances   ¥ 402,799   ¥ 173,298