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Leases (Maturities of Lease Liabilities) (Details) - USD ($)
Sep. 30, 2021
Jan. 01, 2019
Leases    
2021 $ 13,400  
2022 54,600  
2023 56,200  
2024 18,900  
Total lease payments 143,100  
Less imputed interest (15,900)  
Total $ 127,200 $ 241,100