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

Related Parties Transactions (Details)

v3.22.1
Related Parties Transactions (Details)
1 Months Ended 12 Months Ended
Jul. 31, 2012
USD ($)
Jul. 31, 2012
CNY (¥)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Related Party Transaction [Line Items]          
Expired date     Jul. 31, 2021    
Office rent expenses     $ 13,141 $ 12,178 $ 12,177
Ping Lin [Member]          
Related Party Transaction [Line Items]          
Operating office lease, rent expense $ 13,000 ¥ 84,000