Note 14 - Consolidated Net Property and Equipment, Goodwill and Intangible Assets (Details) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Disposable Protective Apparel [Member] | Operating Segments [Member]
Consolidated assets	$ 394,000	$ 450,000
Building Supply [Member] | Operating Segments [Member]
Consolidated assets	2,410,000	2,613,000
Infection Control [Member] | Operating Segments [Member]
Consolidated assets	166,000	368,000
Operating Segments [Member]
Consolidated assets	2,970,000	3,431,000
Corporate, Non-Segment [Member]
Consolidated assets	43,000	10,000
Consolidated assets	$ 3,013,000	$ 3,441,000