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Stock-Based Compensation (Tables)
 3 Months Ended
Sep. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of Stock Option Plans
The following table summarizes activity of the Company’s stock option plans since June 30, 2018:
 
 
Options Outstanding
 
 
Number of
Shares
 
Weighted Average
Exercise Price
 
Weighted Average
Remaining
Contractual Term
(Years)
Outstanding at June 30, 2018
 
4

 
$
5.52

 
3.13
Granted
 
—

 
—

 
 
Exercised
 
—

 
—

 
 
Canceled
 
—

 
—

 
 
Outstanding at September 30, 2018
 
4

 
$
5.52

 
2.88
Summary of Nonvested Restricted Stock
The following table summarizes the status of the Company’s non-vested restricted stock awards since June 30, 2018:
 
 
Non-vested Restricted Stock Awards
 
 
Number of
Shares
 
Weighted Average
Grant Date
Fair Value
Outstanding at June 30, 2018
 
1,135

 
$
27.26

Granted
 
343

 
49.33

Vested
 
(382
)
 
49.31

Forfeited
 
(47
)
 
33.03

Outstanding at September 30, 2018
 
1,049

 
$
38.61
Stock Based Compensation Expenses
The following table presents share-based compensation expenses included in the Company’s Consolidated Statements of Operations:
 
Three Months Ended September 30,
 
2018
 
2017
Cost of revenues
$
252

 
$
148

Selling, general and administrative
3,884

 
3,976

Research and development
543

 
497

Stock-based compensation expense before tax
4,679

 
4,621

Income taxes
(1,281
)
 
(1,763
)
Stock-based compensation expense, net of income taxes
$
3,398

 
$
2,858