SEGMENT AND SIGNIFICANT CUSTOMER INFORMATION

6 Months Ended

Jun. 30, 2013

Segment Reporting [Abstract]

Segment Reporting Disclosure [Text Block]

12. SEGMENT AND SIGNIFICANT CUSTOMER INFORMATION

Pursuant to Codification Topic 280, Segment Reporting, we operate in one reportable business segment, that being the development, acquisition, manufacture and sale of products that improve the health and productivity of cows for the dairy and beef industries. Almost all of our internally funded product development expenses are in support of such products. Our primary customers for the majority of our product sales (80% for the three-month periods ended June 30, 2013 and 2012, and 82% and 80% for the six-month periods ended June 30, 2013 and 2012, respectively) are in the U.S. dairy and beef industries. Product sales to international customers, who are also in the dairy and beef industries, aggregated 14% and 10% of our total product sales for the three-month periods ended June 30, 2013 and 2012, respectively, and 16% of our total product sales for the six-month periods ended June 30, 2013 and 2012. The percentage of our total sales that were made to significant customers that amounted to 10% or more of total product sales are detailed in the following table:

	For the Three-Month Periods Ended June 30,						For the Six-Month Periods Ended June 30,
	2013			2012			2013			2012
Animal Health International, Inc.		38	%		27	%		38	%		35	%
MWI Veterinary Supply Company		13	%		11	%		14	%		13	%

Accounts receivable due from significant customers that amounted to 10% or more of total trade accounts receivable are detailed in the following table:

	As of June 30, 2013			As of December 31, 2012
Animal Health International, Inc.		29	%		28	%
TCS BioSciences, Ltd.		15	%		15	%
MWI Veterinary Supply Company		14	%		14	%