CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenue:
Core companion animal health	$ 26,670	$ 26,386	$ 78,299	$ 74,284
Other vaccines, pharmaceuticals and products	4,758	7,044	17,847	16,257
Total revenue, net	31,428	33,430	96,146	90,541
Cost of revenue	17,875	19,712	54,455	52,699
Gross profit	13,553	13,718	41,691	37,842
Operating expenses:
Selling and marketing	5,815	5,490	17,908	16,495
Research and development	601	507	1,576	1,605
General and administrative	3,359	3,229	11,081	9,724
Total operating expenses	9,775	9,226	30,565	27,824
Operating income	3,778	4,492	11,126	10,018
Interest and other expense (income), net	(6)	14	(186)	(85)
Income before income taxes	3,784	4,478	11,312	10,103
Income tax expense:
Current income tax expense	8	123	25	284
Deferred income tax expense	693	1,012	762	2,287
Total income tax expense	701	1,135	787	2,571
Net income	3,083	3,343	10,525	7,532
Net income (loss) attributable to non-controlling interest	0	(4)	(498)	477
Net income attributable to Heska Corporation	$ 3,083	$ 3,347	$ 11,023	$ 7,055
Earnings Per Share [Abstract]
Basic earnings per share attributable to Heska Corporation, in dollars per share	$ 0.43	$ 0.49	$ 1.58	$ 1.05
Diluted earnings per share attributable to Heska Corporation, in dollars per share	$ 0.40	$ 0.45	$ 1.45	$ 0.97
Weighted average outstanding shares used to compute basic earnings per share attributable to Heska Corporation	7,139	6,871	6,985	6,727
Weighted average outstanding shares used to compute diluted earnings per share attributable to Heska Corporation	7,668	7,454	7,580	7,299