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, 2020
Dec. 31, 2019
Accrued Liabilities And Other Liabilities [Abstract]    
Accrued compensation and related liabilities $ 1,798,990 $ 1,621,177
Deferred revenue and customer deposits 1,410,491 1,260,126
Warranty reserve 422,782 424,011
Other accrued expenses 978,243 1,302,118
Accrued expenses and other liabilities $ 4,610,506 $ 4,607,432