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FINANCING LEASE OBLIGATION - Future minimum principal and interest payments under capital lease arrangements (Details) - USD ($)
Sep. 30, 2021
Dec. 31, 2020
Financing Lease Obligation    
2021 $ 19,819  
2022 5,595  
2023 1,215  
Less: Amount representing interest (504)  
Present value of future minimum lease payments 26,125  
Less: current portion (6,648)  
Financing lease obligations $ 19,477 $ 8,240