Quarterly report pursuant to Section 13 or 15(d)

Benefit Plans (Tables)

v3.10.0.1
Benefit Plans (Tables)
 9 Months Ended
Sep. 30, 2018
Retirement Benefits [Abstract]  
Fair value of options granted
The following table summarizes the weighted-average assumptions used to compute the fair value of options granted to employees and members of our board of directors:
 
For the Three Months Ended September 30,
 
For the Nine Months Ended September 30,
 
2018
 
2017
 
2018
 
2017
Risk-free interest rate
2.8%
 
1.8%
 
2.7%
 
1.8%
Expected life of options — years
4.98
 
4.66
 
4.44
 
4.60
Expected stock price volatility
23%
 
24%
 
23%
 
24%
Expected dividend yield
0.6%
 
0.7%
 
0.7%
 
0.7%

Stock options activity under share-based payment plans
The following table summarizes stock option activity under our share-based plans for the nine months ended September 30, 2018:
 
Options
 
Weighted-
Average
Exercise
Price Per Share
 
Weighted-
Average
Remaining
Contractual
Term (Years)
 
Aggregate
Intrinsic
Value
Outstanding as of December 31, 2017
280,457

 
$
3.76

 
 
 
 
Granted
28,235

 
$
6.71

 
 
 
 
Exercised
(61,566
)
 
$
3.35

 
 
 
 
Forfeited, cancelled or expired
(2,831
)
 
$
4.62

 
 
 
 
Outstanding as of September 30, 2018
244,295

 
$
4.19

 
6.50
 
$
532,346

Exercisable as of September 30, 2018
136,114

 
$
3.56

 
5.66
 
$
375,758

Summary of restricted stock unit and stock award activity
The following table summarizes the restricted stock unit, including PRSU, activity under our share-based plans for the nine months ended September 30, 2018:
 
Shares
 
Grant Date
Fair Value
Per Share
Nonvested as of December 31, 2017
31,323

 
$
4.54

Granted
15,072

 
$
6.56

Vested
(11,245
)
 
$
4.25

Forfeited
(870
)
 
$
4.92

Nonvested as of September 30, 2018
34,280

 
$
5.48