EARNINGS PER SHARE (Tables)

6 Months Ended

Jun. 30, 2018

Earnings Per Share [Abstract]

Reconciliation of basic and diluted earnings per share

The following is a reconciliation of the weighted-average shares outstanding used in the calculation of basic and diluted earnings per share for the three and six months ended June 30, 2018 and 2017 (in thousands, except per share data):

	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
Net income attributable to Heska	$	1,897	$	3,333	$	4,052	$	7,940
Basic weighted-average common shares outstanding	7,226		7,069		7,146		6,967
Assumed exercise of dilutive stock options and restricted shares	624		563		635		603
Diluted weighted-average common shares outstanding	7,850		7,632		7,781		7,570
Basic earnings per share attributable to Heska	$	0.26	$	0.47	$	0.57	$	1.14
Diluted earnings per share attributable to Heska	$	0.24	$	0.44	$	0.52	$	1.05

Schedule of antidilutive securities excluded from computation of earnings per share

The following stock options and restricted shares were excluded from the computation of diluted earnings per share because they would have been anti-dilutive (in thousands):

	Three Months Ended June 30,		Six Months Ended June 30,
	2018	2017	2018	2017
Stock options	169	25	238	132