Quarterly report pursuant to Section 13 or 15(d)

Accrued Expenses - Accrued Expenses Schedule (Details)

v3.10.0.1
Accrued Expenses - Accrued Expenses Schedule (Details) - USD ($)
Sep. 30, 2018
Dec. 31, 2017
Accrued compensation $ 310,998 $ 247,343
Warranty reserve 432,117 426,115
Other 325,303 407,697
Accrued expenses $ 1,068,418 $ 1,081,155