Note 11 - Financial Information about Geographic Areas (Tables)

3 Months Ended

Mar. 31, 2020

Notes Tables

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

	For the Three Months Ended
	March 31,
	2020		2019
Net sales by geographic region
United States	$	15,619,000	$	12,040,000
International		2,535,000		264,000
Consolidated net sales	$	18,154,000	$	12,304,000

	March 31,		December 31,
	2020		2019
Long-lived assets by geographic region
United States	$	2,564,000	$	2,450,000
International		1,486,000		1,493,000
Consolidated total long-lived assets	$	4,050,000	$	3,943,000