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Stockholder's Equity, Stock-Based Compensation Expense and Repurchase Plan (Tables)
 9 Months Ended
Sep. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Stock Options Activity
The following table presents a summary of the activity related to stock options, restricted stock and restricted stock unit awards for the nine months ended September 30, 2017:
 
Stock Options
 
Restricted Stock and Unit Awards
 
Number of Shares
Outstanding at December 31, 2016
847,635

 
285,308

Granted
—

 
17,500

Stock options exercised/restricted stock and unit awards vested
(12,500
)
 
(115,133
)
Cancelled/forfeited
(52,396
)
 
(24,491
)
Outstanding at September 30, 2017
782,739

 
163,184
Schedule of Restricted Stock and Units Awards Activity
The following table presents a summary of the activity related to stock options, restricted stock and restricted stock unit awards for the nine months ended September 30, 2017:
 
Stock Options
 
Restricted Stock and Unit Awards
 
Number of Shares
Outstanding at December 31, 2016
847,635

 
285,308

Granted
—

 
17,500

Stock options exercised/restricted stock and unit awards vested
(12,500
)
 
(115,133
)
Cancelled/forfeited
(52,396
)
 
(24,491
)
Outstanding at September 30, 2017
782,739

 
163,184