STOCKHOLDERS' EQUITY (Tables)

6 Months Ended

Jun. 30, 2018

The Company’s results for the three and six months ended June 30, 2018 and 2017 reflected the following stock-based compensation cost, and such compensation cost had the following effects on net earnings:

	Increase/(Decrease) for the Three Months Ended June 30, 2018 2017
Cost of sales		$	242		$	(167	)
Operating expenses			1,424			1,210
Net earnings			(1,280	)		(663	)

	Increase/(Decrease) for the Six Months Ended June 30, 2018 2017
Cost of sales		$	487		$	144
Operating expenses			2,972			2,740
Net earnings			(2,657	)		(1,830	)

Stock Option Activity

Option activity for the six months ended June 30, 2018 and 2017 is summarized below:

For the six months ended June 30, 2018	Shares (000s)			Weighted Average Exercise Price		Aggregate Intrinsic Value		Weighted Average Remaining Contractual Term
Outstanding as of December 31, 2017		946		$	55.44	$	24,714
Granted		148			74.57
Exercised		(152	)		43.32
Forfeited		(2	)		75.44
Cancelled		(1	)		25.39
Outstanding as of June 30, 2018		939		$	60.42	$	35,409		6.6
Exercisable as of June 30, 2018		534		$	49.19	$	26,142		5.3

For the six months ended June 30, 2017	Shares (000s)			Weighted Average Exercise Price		Aggregate Intrinsic Value		Weighted Average Remaining Contractual Term
Outstanding as of December 31, 2016		1,066		$	45.32	$	41,161
Granted		220			85.23
Exercised		(150	)		32.54
Forfeited		(39	)		70.57
Cancelled		(19	)		58.61
Outstanding as of June 30, 2017		1,078		$	54.10	$	27,001		6.6
Exercisable as of June 30, 2017		603		$	40.83	$	22,249		4.7

Other Information Pertaining to Stock Option Activity

Other information pertaining to option activity during the three and six months ended June 30, 2018 and 2017 was as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018		2017
Weighted-average fair value of options granted		$	-		$	20.54	$	18.62	$	23.21
Total intrinsic value of stock options exercised ($000s)		$	5,375		$	2,375	$	7,200	$	7,596

Non-vested Restricted Stock Activity

Non-vested restricted stock activity for the six months ended June 30, 2018 and 2017 is summarized below:

Six months ended June 30, 2018	Shares (000s)			Weighted Average Grant Date Fair Value
Non-vested balance as of December 31, 2017		66		$	65.66
Granted		37			75.19
Vested		(17	)		57.65
Forfeited		-			-
Non-vested balance as of June 30, 2018		86		$	71.40

Six months ended June 30, 2017	Shares (000s)			Weighted Average Grant Date Fair Value
Non-vested balance as of December 31, 2016		102		$	54.18
Granted		9			85.40
Vested		(41	)		50.07
Forfeited		(4	)		55.45
Non-vested balance as of June 30, 2017		66		$	61.05

Non-vested Performance Share Activity

Non-vested performance share activity for the six months ended June 30, 2018 and 2017 is summarized below:

Six months ended June 30, 2018	Shares (000s)			Weighted Average Grant Date Fair Value
Non-vested balance as of December 31, 2017		39		$	72.62
Granted		32			71.27
Vested		(15	)		58.78
Forfeited		-			-
Non-vested balance as of June 30, 2018		56		$	75.47

Six months ended June 30, 2017	Shares (000s)			Weighted Average Grant Date Fair Value
Non-vested balance as of December 31, 2016		34		$	61.06
Granted		16			93.85
Vested		-			-
Forfeited		(7	)		69.18
Non-vested balance as of June 30, 2017		43		$	72.26