CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Cumulative Effect, Period of Adoption, Adjusted Balance	Equity Offering	Preferred Stock	Common Stock	Common Stock Cumulative Effect, Period of Adoption, Adjusted Balance	Common Stock Equity Offering	Additional Paid-in Capital	Additional Paid-in Capital Cumulative Effect, Period of Adoption, Adjustment	Additional Paid-in Capital Cumulative Effect, Period of Adoption, Adjusted Balance	Additional Paid-in Capital Equity Offering	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) Cumulative Effect, Period of Adoption, Adjusted Balance	Accumulated Deficit	Accumulated Deficit Cumulative Effect, Period of Adoption, Adjustment	Accumulated Deficit Cumulative Effect, Period of Adoption, Adjusted Balance
Beginning balance (in shares) at Dec. 31, 2019					0	7,882	7,882
Beginning balance at Dec. 31, 2019	$ 154,364	$ (18)	$ 154,346		$ 0	$ 79	$ 79		$ 290,216		$ 290,216		$ 513	$ 513	$ (136,444)	$ (18)	$ (136,462)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss attributable to Heska Corporation	(14,399)														(14,399)
Issuance of common stock, net of shares withheld for employee taxes (in shares)						85
Issuance of common stock, net of shares withheld for employee taxes	2,796					$ 1			2,795
Issuance of preferred stock (in shares)					122
Stock Issued During Period, Value, New Issues	121,786				$ 1				121,785
Conversion to common stock (in shares)					(122)	1,509
Conversion to common stock	0				$ (1)	$ 15			(14)
Stock-based compensation	9,490								9,490
Purchase of minority interest	(622)								(622)
Other comprehensive loss	13,656												13,656
Ending balance at Dec. 31, 2020	287,053	$ (26,469)	$ 260,584		$ 0	$ 95	$ 95		423,650	$ (29,834)	$ 393,816		14,169	$ 14,169	(150,861)	$ 3,365	$ (147,496)
Ending balance (in shares) at Dec. 31, 2020					0	9,476	9,476
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss attributable to Heska Corporation	(1,148)														(1,148)
Issuance of common stock, net of shares withheld for employee taxes (in shares)						295
Issuance of common stock, net of shares withheld for employee taxes	3,101					$ 3			3,098
Stock Issued During Period, Value, New Issues				$ 164,186				$ 9				$ 164,177
Conversion to common stock (in shares)								941
Stock-based compensation	18,263								18,263
Other comprehensive loss	(9,132)												(9,132)
Ending balance at Dec. 31, 2021	435,854				$ 0	$ 107			579,354				5,037		(148,644)
Ending balance (in shares) at Dec. 31, 2021					0	10,712
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss attributable to Heska Corporation	(19,889)														(19,889)
Issuance of common stock, net of shares withheld for employee taxes (in shares)						118
Issuance of common stock, net of shares withheld for employee taxes	(2,078)					$ 1			(2,079)
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs	3,860								3,860
Stock-based compensation	16,004								16,004
Other comprehensive loss	(11,543)												(11,543)
Ending balance at Dec. 31, 2022	$ 422,208				$ 0	$ 108			$ 597,139				$ (6,506)		$ (168,533)
Ending balance (in shares) at Dec. 31, 2022					0	10,830