Note 6 - Inventory (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2023

Dec. 31, 2022

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	March 31,			December 31,
	2023			2022
Finished goods	$	4,758,089		$	4,764,643
Fabricated assemblies		69,726			69,726
Reserve on finished goods		(400,000	)		(400,000	)
Total inventory	$	4,427,815		$	4,434,369

	2022			2021
Finished goods	$	4,764,643		$	4,798,203
Fabricated assemblies		69,726			142,457
Reserve on finished goods		(400,000	)		-
Total inventory	$	4,434,369		$	4,940,660