Note 7 - Concentration of Revenue

6 Months Ended

Jun. 30, 2012

Concentration Risk Disclosure [Text Block]

7. Concentration of Revenue–The following table indicates the percentage of consolidated revenue represented by each customer for any period in which such customer represented more than 10% of consolidated revenue.

	Three Months Ended June 30,						Six Months Ended June 30,
(unaudited)	2012			2011			2012			2011
ChemFree Customer A		29	%		27	%		29	%		30	%
ChemFree Customer B		14	%		13	%		14	%		12	%