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 ($)
Sep. 30, 2018
Dec. 31, 2017
Accrued Liabilities And Other Liabilities [Abstract]    
Accrued compensation and related liabilities $ 661,254 $ 457,152
Deferred revenue and customer deposits 1,139,681 1,033,845
Warranty reserve 59,270 56,774
Other accrued expenses 107,099 386,206
Accrued expenses and other liabilities $ 1,967,304 $ 1,933,977