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SEGMENT AND SIGNIFICANT CUSTOMER INFORMATION (Tables)

12 Months Ended

Dec. 31, 2012

Segment Reporting [Abstract]

Schedule Of Sales To Significant Customers Table [Text Block]

Sales to significant customers that amounted to 10% or more of total product sales are detailed in the following table:

		Year Ended December 31,
		2012				2011				2010
Animal Health International, Inc.⁽¹⁾			35	%			38	%			36	%
MWI Veterinary Supply Company⁽²⁾			14	%			14	%			13	%

(1) Assumes that the June 2011 acquisition of Animal Health International by Lextron had occurred as of the beginning of the periods being reported.

(2) Assumes that the March 2011 acquisition of Nelson Laboratories and the October 2011 acquisition of Micro Beef Technologies by MWI had occurred as of the beginning of the periods being reported.

Schedule Of Accounts Receivable Due From Significant Customers Table [Text Block]

Accounts receivable due from significant customers amounted to the percentages of total trade accounts receivable as detailed in the following table:

		As of December 31,
		2012				2011
Animal Health International, Inc.⁽¹⁾			28	%			23	%
TCS BioSciences, Ltd.			15	%			*
MWI Veterinary Supply Company⁽²⁾			14	%			21	%
Leedstone Inc. (formerly Stearns Veterinary Outlet, Inc.)			*				18	%

*Amount is less than 10%.

(1) Assumes that the June 2011 acquisition of Animal Health International by Lextron had occurred as of the dates being reported.

(2) Assumes that the March 2011 acquisition of Nelson Laboratories and the October 2011 acquisition of Micro Beef Technologies by MWI had occurred as of the dates being reported.