Note 4 - Inventory

3 Months Ended

Mar. 31, 2019

Notes to Financial Statements

Inventory Disclosure [Text Block]

4.

  INVENTORY

Inventory is valued at the lower of cost (

first

-in,

first

-out) or net realizable value and consists of:

	March 3 1 , 201 9		December 31, 201 8
Raw materials and component parts	$	1,987,221	$	2,313,664
Work-in-process		1,736,430		1,209,117
Finished products		1,893,087		2,201,693
Total inventory	$	5,616,738		5,724,474
Less: inventory reserves		281,744		226,492
Net inventory	$	5,334,994	$	5,497,982