Stock-Based Compensation (Tables)

As of October 31, 2018, the following stock-based awards, by award type, were outstanding:

Stock-based compensation for awards issued is reflected in the following line items in our Condensed Consolidated Statements of Operations:



	Three months ended October 31,
	2018			2017
Cost of sales	$	58,000		40,000
Selling, general and administrative expenses	905,000			654,000
Research and development expenses	83,000			53,000
Stock-based compensation expense before income tax benefit	1,046,000			747,000
Estimated income tax benefit	(228,000		)	(260,000	)
Net stock-based compensation expense	$	818,000		487,000

Stock-based compensation expense (benefit), by award type, is summarized as follows:



	Three months ended October 31,
	2018			2017
Stock options	$	171,000		267,000
Performance shares	406,000			112,000
RSUs and restricted stock	547,000			385,000
ESPP	52,000			45,000
Share units	(130,000		)	(62,000	)
Stock-based compensation expense before income tax benefit	1,046,000			747,000
Estimated income tax benefit	(228,000		)	(260,000	)
Net stock-based compensation expense	$	818,000		487,000

The following table summarizes the Plan's activity during the three months ended October 31, 2018:



	Awards (in Shares)		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value
Outstanding at July 31, 2018	1,668,975		$	28.72
Exercised	(78,930	)	28.37
Outstanding at October 31, 2018	1,590,045		$	28.74	4.27	$	741,000

Exercisable at October 31, 2018	1,388,123		$	28.74	3.94	$	574,000

Vested and expected to vest at October 31, 2018	1,555,133		$	28.73	4.22	$	712,000

The following table summarizes the Plan's activity relating to performance shares, RSUs, restricted stock and share units:



	Awards (in Shares)		Weighted Average Grant Date Fair Value		Aggregate Intrinsic Value
Outstanding at July 31, 2018	818,438		$	19.78
Granted	177,908		34.27
Settled	(121,790	)	21.08
Forfeited	(17,659	)	27.23
Outstanding at October 31, 2018	856,897		$	22.44	$	23,925,000

Vested at October 31, 2018	216,718		$	27.71	$	6,051,000

Vested and expected to vest at October 31, 2018	819,625		$	22.58	$	22,884,000