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Inventory Components (Details) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Inventory Disclosure [Abstract]
Raw materials and sub-assemblies	$ 3,074,865	$ 3,016,327
Finished goods	9,670	67,120
Inventory reserves	(871,595)	(885,181)
Inventories, net	$ 2,212,940	$ 2,198,266

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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