Note 15 - Concentration of Risk

12 Months Ended

Dec. 31, 2016

Notes to Financial Statements

Concentration Risk Disclosure [Text Block]

15. Concentration of Risk

 The Company maintains its cash in various bank accounts, 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.

The Company’s investments in marketable securities are in

one

publicly traded entity. The Company recognized a gain on investment in common stock warrants in a prior period and recognizes an unrealized gain (loss) in comprehensive income (loss) for changes in the fair value of the investment. The Company is exposed to the fluctuation in the stock price of this investment.

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

The Company buys a significant amount of its disposable protective apparel products from a limited number of subcontractors located in Asia and, to a much lesser extent, a subcontractor in Mexico. 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 United States. Customers accounting for

10%

or more of accounts receivable as of

December

31,

2016

and

2015,

and

10%

or more of net sales for the years ended

December

31,

2016

and

2015,

were as follows:

Accounts receivable:	2016			2015
Customer A		11	%		11	%
Customer B		15	%		23	%
Customer C		21	%		8	%
Net Sales:
Customer B		17	%		18	%
Customer C		11	%		*

*

Customer’s balance was below the

10%

threshold for revenue for the year ended

December

31,

2015.