Note 15 - Activity of Business Segments (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

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

	Years Ended December 31,
	2019		2018
Building Supply	$	26,576,000	$	26,035,000
Disposable Protective Apparel		20,089,000		20,589,000
Consolidated net sales	$	46,665,000	$	46,624,000

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

	Years Ended December 31,
	2019		2018
Building Supply	$	3,491,000	$	3,836,000
Disposable Protective Apparel		3,856,000		4,584,000
Total segment income		7,347,000		8,420,000
Unallocated corporate overhead expenses		3,667,000		4,006,000
Provision for income taxes		680,000		789,000
Consolidated net income	$	3,000,000	$	3,625,000

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

	Years Ended December 31,
	2019		2018
Net sales by geographic region
United States	$	45,748,000	$	45,595,000
International		917,000		1,029,000
Consolidated net sales	$	46,665,000	$	46,624,000

	As of December 31,
	2019		2018
Long-lived assets by geographic region
United States	$	2,450,000	$	2,528,000
International		1,493,000		716,000
Consolidated total long-lived assets	$	3,943,000	$	3,244,000

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

	As of December 31,
	2019		2018
Building Supply	$	1,867,000	$	1,908,000
Disposable Protective Apparel		1,087,000		400,000
Total segment assets		2,954,000		2,308,000
Unallocated corporate assets		1,055,000		1,007,000
Total consolidated assets	$	4,009,000	$	3,315,000