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Inventory Components (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Inventory Disclosure [Abstract]
Raw materials and sub-assemblies	$ 3,642,377	$ 3,767,588
Finished goods	281,104	241,681
Inventory reserves	(727,639)	(830,361)
Inventories, net	$ 3,195,842	$ 3,178,908

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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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