Note 4 - Inventory (Tables)

3 Months Ended

Mar. 31, 2020

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	March 31, 20 20		December 31, 2019
Raw materials and component parts	$	2,923,247	$	2,945,427
Work-in-process		3,367,632		2,800,699
Finished products		4,876,415		2,183,170
Total inventory	$	11,167,294		7,929,296
Less: inventory reserves		230,506		250,606
Net inventory	$	10,936,788	$	7,678,690