Note 14 - Activity of Business Segments (Details) - Consolidated Net Property and Equipment, Goodwill and Intangible Assets (USD $)	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting, Asset Reconciling Item [Line Items]
Consolidated assets	$ 3,441,000	$ 3,215,000
Operating Segments [Member] | Disposable Protective Apparel [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Consolidated assets	450,000	483,000
Operating Segments [Member] | Building Supply [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Consolidated assets	2,613,000	2,144,000
Operating Segments [Member] | Infection Control [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Consolidated assets	368,000	568,000
Operating Segments [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Consolidated assets	3,431,000	3,195,000
Corporate, Non-Segment [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Consolidated assets	$ 10,000	$ 20,000