Note 11 - Financial Information about Geographic Areas (Tables)

9 Months Ended

Sep. 30, 2023

Notes Tables

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]

	For the Three Months Ended				For the Nine Months Ended
	September 30,				September 30,
	2023		2022		2023		2022
Net sales by geographic region
United States	$	15,928,000	$	14,569,000	$	45,682,000	$	48,385,000
International		125,000		153,000		285,000		1,371,000
Consolidated net sales	$	16,053,000	$	14,722,000	$	45,967,000	$	49,756,000

	September 30,		December 31,
	2023		2022
Long-lived assets by geographic region
United States	$	4,283,000	$	4,380,000
International		1,260,000		1,362,000
Consolidated total long-lived assets	$	5,543,000	$	5,742,000