Note 10 - Activity of Business Segments (Details) - Consolidated net property and equipment, goodwill and intangible assets (USD $)	Jun. 30, 2013	Dec. 31, 2012
Segment Reporting, Asset Reconciling Item [Line Items]
Segment Assets	$ 3,346,000	$ 3,543,000
Unallocated corporate assets	35,000	44,000
Total consolidated assets	3,381,000	3,587,000
Building Supply [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Segment Assets	2,181,000	2,252,000
Disposable Protective Apparel [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Segment Assets	494,000	528,000
Infection Control [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Segment Assets	$ 671,000	$ 763,000