Note 4 - Inventory

3 Months Ended

Mar. 31, 2022

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 31, 2022		December 31, 2021
Raw materials and component parts	$	3,390,216	$	3,904,865
Work-in-process		4,019,377		3,949,647
Finished products		9,776,688		9,183,532
Total inventory	$	17,186,281	$	17,038,044
Less: inventory reserves		436,070		452,607
Net inventory	$	16,750,211	$	16,585,437