SEGMENT REPORTING (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Total revenue	$ 18,979	$ 19,175
Operating income	(682)	1,082
Interest expense	57	30
Total assets	89,564	63,944	66,826
Net assets	48,057	48,938
Capital expenditures	317	271
Depreciation and amortization	474	413
Core Companion Animal Health
Total revenue	15,649	16,580
Operating income	(1,093)	545
Interest expense	51	24
Total assets	78,285	52,777
Net assets	41,034	41,044
Capital expenditures	309	182
Depreciation and amortization	279	189
Other Vaccines, Pharmaceuticals and Products
Total revenue	3,330	2,595
Operating income	411	537
Interest expense	6	6
Total assets	11,279	11,167
Net assets	7,023	7,894
Capital expenditures	8	89
Depreciation and amortization	$ 195	$ 224