Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2020	May 07, 2020
Document And Entity Information
Entity Registrant Name	Heska Corp
Entity Central Index Key	0001038133
Document Type	10-Q
Document Period End Date	Mar. 31, 2020
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2020
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		9,391,923