Quarterly report pursuant to Section 13 or 15(d)

Accrued Expenses and Other Liabilities - Schedule of Accrued Expenses and Other Liabilities (Details)

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Accrued Expenses and Other Liabilities - Schedule of Accrued Expenses and Other Liabilities (Details) - USD ($)
Mar. 31, 2021
Dec. 31, 2020
Accrued Liabilities And Other Liabilities [Abstract]    
Accrued compensation and related liabilities $ 992,810 $ 932,988
Deferred revenue and customer deposits 1,281,663 1,096,672
Warranty reserve 425,377 425,636
Deferred rent 292,890 312,909
Other accrued expenses 592,362 713,239
Accrued expenses and other liabilities $ 3,585,102 $ 3,481,444