Note 4 - Inventory (Tables)

6 Months Ended

Jun. 30, 2020

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	June 3 0 , 2020		December 31, 2019
Raw materials and component parts	$	3,351,443	$	2,945,427
Work-in-process		3,366,209		2,800,699
Finished products		4,589,223		2,183,170
Total inventory	$	11,306,875		7,929,296
Less: inventory reserves		249,838		250,606
Net inventory	$	11,057,037	$	7,678,690