XML 49 R39.htm IDEA: XBRL DOCUMENT v3.21.1
Accrued Expenses - Schedule of Accrued Expenses and Other Current Liabilities (Details) - USD ($)
Mar. 31, 2021
Dec. 31, 2020
Payables and Accruals [Abstract]    
Manufacturer's warranties $ 352,000 $ 352,000
Taxes payable 286,825 316,076
Miscellaneous payable 144,195 104,808
Total accrued expenses and other current liabilities $ 783,020 $ 772,884