Note 4 - Inventory

9 Months Ended

Sep. 30, 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:

	September 30, 2019		December 31, 2018
Raw materials and component parts	$	3,082,312	$	2,313,664
Work-in-process		2,180,458		1,209,117
Finished products		2,158,350		2,201,693
Total inventory		7,421,120		5,724,474
Less: inventory reserves		321,447		226,492
Net inventory	$	7,099,673	$	5,497,982