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NOTE 4 — Inventories (Tables)

9 Months Ended

Sep. 30, 2021

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

		September 30,				December 31,
		2021				2020
Raw materials and sub-assemblies		$	4,880,494			$	3,642,377
Finished goods			359,985				281,104
Inventory reserves			805,943				727,639
Inventory, net		$	4,434,536			$	3,195,842

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- Definition

Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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