CONDENSED CONSOLIDATED STATEMENTS OF (LOSS) INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues [Abstract]
Revenue, net	$ 64,928	$ 45,712	$ 125,431	$ 76,366
Cost of revenue	37,656	27,847	72,689	45,053
Gross profit	27,272	17,865	52,742	31,313
Operating expenses:
Selling and marketing	12,449	9,583	23,356	16,963
Research and development	1,948	1,696	3,134	3,824
General and administrative	13,569	11,040	25,930	19,599
Total operating expenses	27,966	22,319	52,420	40,386
Operating (loss) income	(694)	(4,454)	322	(9,073)
Interest and other expense, net	581	2,145	1,106	4,343
Loss before income taxes and equity in losses of unconsolidated affiliates	(1,275)	(6,599)	(784)	(13,416)
Income tax expense (benefit):
Current income tax expense	36	31	677	56
Deferred income tax benefit	(1,087)	(243)	(3,294)	(1,776)
Total income tax benefit	(1,051)	(212)	(2,617)	(1,720)
Net (loss) income before equity in losses of unconsolidated affiliates	(224)	(6,387)	1,833	(11,696)
Equity in losses of unconsolidated affiliates	(343)	(87)	(529)	(217)
Net (loss) income after equity in losses of unconsolidated affiliates	(567)	(6,474)	1,304	(11,913)
Net loss attributable to redeemable non-controlling interest	0	(117)	0	(268)
Net (loss) income attributable to Heska Corporation	$ (567)	$ (6,357)	$ 1,304	$ (11,645)
Earnings Per Share [Abstract]
Basic (loss) earnings per share attributable to Heska Corporation (in dollars per share)	$ (0.06)	$ (0.72)	$ 0.13	$ (1.43)
Diluted (loss) earnings per share attributable to Heska Corporation (in dollars per share)	$ (0.06)	$ (0.72)	$ 0.13	$ (1.43)
Weighted average outstanding shares used to compute basic (loss) earnings per share attributable to Heska Corporation (in shares)	10,167	8,776	9,825	8,165
Weighted average outstanding shares used to compute diluted (loss) earnings per share attributable to Heska Corporation (in shares)	10,167	8,776	10,189	8,165