Note 13 - Concentration of Risk

12 Months Ended

Dec. 31, 2011

Concentration Risk Disclosure [Text Block]

13.      Concentration of Risk

The Company maintains its cash and cash equivalents in accounts in a number of banks, the balances of which at times may exceed federally insured limits.  The Company has not experienced any losses related to these accounts, and management does not believe that the Company is exposed to significant credit risk.

Management believes that adequate provision has been made for risk of loss on all credit transactions.

The Company currently buys a significant amount of its disposable protective apparel products from a few subcontractors located in Asia and, to a much lesser extent, a subcontractor in Mexico.  Although there are a limited number of manufacturers of the particular product, management believes that other suppliers could provide similar products at comparable terms.  A change in suppliers, however, could cause a delay in shipment and a possible loss of sales, which would affect operating results adversely.

The Building Supply segment buys semi-finished housewrap and synthetic roof underlayment from its joint venture, Harmony, located in India.  Although there are a limited number of manufacturers of the particular product, management believes that other suppliers could provide similar products at comparable terms.  A change in suppliers, however, could cause a delay in shipment and a possible loss of sales, which would affect operating results adversely.

The Company provides products to customers located primarily in the U.S.  Customers accounting for 10% or more of accounts receivable as of December 31, 2011 and 2010, and 10% or more of revenues for years ended December 31, 2011 and 2010, were as follows:

Accounts receivable:	2011	2010
Customer A	18%	13%
Customer B	16%	14%
Revenues:
Customer A	15%	12%
Customer B	17%	13%
Customer C	*	14%
* The customer accounted for less than 10% as of the date indicated.