Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2012	Mar. 14, 2013
Document And Entity Information
Entity Registrant Name	Heska Corp
Entity Central Index Key	0001038133
Document Type	10-K
Document Period End Date	Dec. 31, 2012
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Is Entity a Well-known Seasoned Issuer?	No
Is Entity a Voluntary Filer?	No
Is Entity's Reporting Status Current?	Yes
Entity Filer Category	Smaller Reporting Company
Entity Public Float		$ 56,863,979
Entity Common Stock, Shares Outstanding		5,802,656
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2012