Note 15 - Activity of Business Segments (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

Schedule of Segment Reporting Information, by Segment [Table Text Block]

	Years Ended December 31,
	2023		2022
Building Supply	$	40,396,000	$	36,937,000
Disposable Protective Apparel		20,836,000		25,044,000
Consolidated net sales	$	61,232,000	$	61,981,000

Reconciliation of Revenue from Segments to Consolidated [Table Text Block]

	Years Ended December 31,
	2023		2022
Building Supply	$	5,703,000	$	5,359,000
Disposable Protective Apparel		4,385,000		4,010,000
Total segment income		10,088,000		9,369,000
Unallocated corporate overhead expenses		4,663,000		4,974,000
Provision for income taxes		1,236,000		1,113,000
Consolidated net income	$	4,189,000	$	3,282,000

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

	Years Ended December 31,
	2023		2022
Net sales by geographic region
United States	$	60,882,000	$	60,489,000
International		350,000		1,492,000
Consolidated net sales	$	61,232,000	$	61,981,000

	As of December 31,
	2023		2022
Long-lived assets, net by geographic region
United States	$	4,340,000	$	4,380,000
International		1,247,000		1,362,000
Consolidated total long-lived assets, net	$	5,587,000	$	5,742,000

Reconciliation of Assets from Segment to Consolidated [Table Text Block]

	As of December 31,
	2023		2022
Building Supply	$	3,389,000	$	3,395,000
Disposable Protective Apparel		1,213,000		1,327,000
Total segment assets		4,602,000		4,722,000
Unallocated corporate assets		1,040,000		1,076,000
Total consolidated assets	$	5,642,000	$	5,798,000