Quarterly report pursuant to Section 13 or 15(d)

Inventories - Summary of Inventories, Net (Details)

v3.10.0.1
Inventories - Summary of Inventories, Net (Details) - USD ($)
Jun. 30, 2018
Dec. 31, 2017
Inventory Disclosure [Abstract]    
Raw materials $ 1,972,460 $ 2,079,589
Sub-assemblies 1,546,982 2,417,095
Inventory, gross 3,519,442 4,496,684
Less: reserves for obsolete and slow-moving inventories (163,367) (800,354)
Inventory, net $ 3,356,075 $ 3,696,330