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Subsequent Events (Notes)	6 Months Ended
Subsequent Events (Notes)	Jun. 30, 2013
Subsequent Events [Abstract]
Subsequent Events [Text Block]	14. Subsequent Events On July 5, 2013, AVC acquired 90% of the shares of Groupe Veteri - Medic Inc. for approximately CDN $17.2 million, which includes contingent consideration. Groupe Veteri - Medic operates three animal hospitals in Montreal, Quebec. The acquisition expands AVC's presence within the Canadian market by increasing operations into a fourth province, Quebec.