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Lease (Details) - Schedule of net investment in sales-type leases - USD ($)
Mar. 31, 2022
Dec. 31, 2021
Schedule of net investment in sales-type leases [Abstract]    
Total future minimum lease payments receivable $ 1,587,106 $ 1,737,817
Less: unearned income, representing interest (79,911) (108,773)
Present value of minimum lease payments receivables 1,507,195 1,629,044
Less: Current portion (792,262) (790,516)
Non-current portion $ 714,933 $ 838,528