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Income taxes (Details Narrative)
 12 Months Ended
Dec. 22, 2017
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Sep. 30, 2020
USD ($)
Sep. 30, 2019
USD ($)
Sep. 30, 2017
Operating Loss Carryforwards [Line Items]            
Operating loss carryforwards       $ 8,900,000    
Operating loss carryforwards, description       future operating income through 2036    
U.S. corporate tax rate 0.35 0.21        
Income tax description   As the Company has a September 30 fiscal year-end, the lower corporate income tax rate will be phased in, resulting in a U.S. statutory federal rate of approximately 24.5% for our fiscal year ending September 30, 2018, and 21% for subsequent fiscal years. Accordingly, we have to remeasure our deferred tax assets on net operating loss carryforward in the U.S. at the lower enacted cooperated tax rate of 21%        
Percentage of deferred tax assets, valuation allowance   100.00%       100.00%
Tax cuts and jobs act net operating loss carryforwards tax payable   The change in rate has caused us to remeasure all U.S. deferred income tax assets and liabilities for temporary differences and net operating loss (NOL) carryforwards and recorded a one-time income tax payable in 8 years        
Foreign tax rate   25.00% 25.00% 25.00% 25.00%  
Deferred Tax Assets, Valuation Allowance   $ 9,032,129 $ 9,032,129 $ 9,032,129 $ 9,032,129  
HONG KONG            
Operating Loss Carryforwards [Line Items]            
Foreign tax rate   16.50%        
CHINA            
Operating Loss Carryforwards [Line Items]            
Foreign tax rate   25.00%        
CHINA | Foreign Tax Authority [Member]            
Operating Loss Carryforwards [Line Items]            
Operating loss carryforwards       $ 20,200,000    
Operating loss carryforwards, description       the Company had net operating loss carry forwards of approximately of $20.2 million in PRC tax jurisdiction, which expires by 2022