Note 14 - Activity of Business Segments (Detail) - Consolidated net property and equipment, goodwill and intangible assets (USD $)	Dec. 31, 2012	Dec. 31, 2011
Segment Assets	$ 3,543,000	$ 3,753,000
Unallocated corporate assets	44,000	73,000
Total consolidated assets	3,587,000	3,826,000
Disposable Protective Apparel [Member]
Segment Assets	528,000	640,000
Building Supply [Member]
Segment Assets	2,252,000	2,142,000
Infection Control [Member]
Segment Assets	$ 763,000	$ 971,000