Note 14 - Activity of Business Segments (Details) - Segments Reconciliation Summary (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Net sales	$ 43,806,000	$ 41,058,000
Long-lived assets	3,068,000	3,419,000
Net property, equipment, goodwill and intangible assets	3,215,000	3,587,000
Net income	2,079,000	977,000
Provision for income taxes	(885,000)	(330,000)
Operating Segments [Member] | Building Supply [Member]
Segment Reporting Information [Line Items]
Net sales	26,373,000	23,749,000
Net property, equipment, goodwill and intangible assets	2,144,000	2,252,000
Net income	4,709,000	3,031,000
Operating Segments [Member] | Disposable Protective Apparel [Member]
Segment Reporting Information [Line Items]
Net sales	13,191,000	13,188,000
Net property, equipment, goodwill and intangible assets	483,000	528,000
Net income	1,534,000	1,624,000
Operating Segments [Member] | Infection Control [Member]
Segment Reporting Information [Line Items]
Net sales	4,242,000	4,121,000
Net property, equipment, goodwill and intangible assets	568,000	763,000
Net income	1,144,000	1,118,000
Operating Segments [Member]
Segment Reporting Information [Line Items]
Net property, equipment, goodwill and intangible assets	3,195,000	3,543,000
Net income	7,387,000	5,773,000
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Net property, equipment, goodwill and intangible assets	20,000	44,000
Net income	(4,423,000)	(4,466,000)
Reportable Geographical Components [Member] | UNITED STATES
Segment Reporting Information [Line Items]
Net sales	41,644,000	39,463,000
Long-lived assets	2,668,000	2,956,000
Reportable Geographical Components [Member] | International [Member]
Segment Reporting Information [Line Items]
Net sales	2,162,000	1,595,000
Long-lived assets	$ 400,000	$ 463,000