Note 14 - Activity of Business Segments (Tables)

12 Months Ended

Dec. 31, 2014

Segment Reporting [Abstract]

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

	Years Ended December 31,
	2014		2013
Building Supply	$	27,549,000	$	26,373,000
Disposable Protective Apparel		14,670,000		13,191,000
Infection Control		5,430,000		4,242,000
Consolidated net sales	$	47,649,000	$	43,806,000

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

	Years Ended December 31,
	2014		2013
Building Supply	$	4,750,000	$	4,709,000
Disposable Protective Apparel		1,601,000		1,534,000
Infection Control		1,953,000		1,144,000
Total segment income		8,304,000		7,387,000
Gain on sale of marketable securities and investment in common stock warrants		409,000		350,000
Unallocated corporate overhead expenses		4,770,000		4,773,000
Provision for income taxes		1,201,000		885,000
Consolidated net income	$	2,742,000	$	2,079,000

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

	Years Ended December 31,
	2014		2013
Net sales by geographic region
United States	$	45,714,000	$	41,644,000
International		1,935,000		2,162,000
Consolidated net sales	$	47,649,000	$	43,806,000

	As of December 31,
	2014		2013
Long-lived assets by geographic region
United States	$	2,944,000	$	2,668,000
International		371,000		400,000
Consolidated total long-lived assets	$	3,315,000	$	3,068,000

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

	As of December 31,
	2014		2013
Disposable Protective Apparel	$	450,000	$	483,000
Building Supply		2,613,000		2,144,000
Infection Control		368,000		568,000
Total segment assets		3,431,000		3,195,000
Unallocated corporate assets		10,000		20,000
Total consolidated assets	$	3,441,000	$	3,215,000