Note 4 - Inventory (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	December 31, 2019		December 31, 2018
Raw materials and component parts	$	2,945,427	$	2,313,664
Work-in-process		2,800,699		1,209,117
Finished products		2,183,170		2,201,693
Total Inventory		7,929,296		5,724,474
Less: Inventory reserves		250,606		226,492
Net Inventory	$	7,678,690	$	5,497,982