XML 89 R77.htm IDEA: XBRL DOCUMENT v3.21.2
Lease (Details) - Schedule of net investment in sales-type leases - USD ($)
Sep. 30, 2021
Dec. 31, 2020
Schedule of net investment in sales-type leases [Abstract]    
Total future minimum lease payments receivable $ 1,950,163 $ 1,210,305
Less: unearned income, representing interest (130,783) (124,653)
Present value of minimum lease payments receivables 1,819,380 1,085,652
Less: Current portion (838,649) (235,245)
Non-current portion $ 980,731 $ 850,407