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Employee Benefit Plans (Tables)
 6 Months Ended
Jun. 30, 2017
Share-based Compensation [Abstract]  
Summary Of Stock Option Activity
A summary of the Company’s stock option activity and related information is presented below:
 
Six months ended June 30,
 
2017
2016
Options
Weighted-Average Exercise Price
Options
Weighted-Average Exercise Price
Outstanding at January 1
86,613

$
41.08

95,015

$
38.38

Granted
17,631

66.32

24,348

43.73

Exercised
(16,639
)
35.91

(20,250
)
33.68

Forfeited
—

—

—

—

Outstanding at June 30
87,605

$
47.15

99,113

$
40.68

 
 
 
 
 
Exerciseable at June 30
7,887

$
37.37

15,500

$
36.23


 
Information regarding stock option exercises and stock-based compensation expense associated with stock options is provided in the following table (in thousands):    
 
Six months ended June 30,
 
2017
2016
Proceeds from stock option exercises
$
597

$
682

Intrinsic value of stock options exercised
481

302

 
 
 
Stock-based compensation expense associated with stock options
$
125

$
120

 
 
 
At period-end:
June 30, 2017
 
Unrecognized stock-based compensation expense associated with stock options
$
503

 
Weighted average period (in years) in which the above amount is expected to be
 
 
   recognized
2.8

 
Stock Options Outstanding And Exercisable

Additional information regarding stock options outstanding and exercisable at June 30, 2017, is provided in the following table:
Ranges of Exercise Prices
No. of Options Outstanding
Weighted-Average Exercise Price
Weighted-Average Remaining Contractual Life (Years)
Aggregate Intrinsic Value (in thousands)
No. of Options Currently Exercisable
Weighted-Average Exercise Price of Options Currently Exercisable
Weighted-Average Remaining Contractual Life (Years)
Aggregate Intrinsic Value of Options Currently Exercisable (in thousands)
$30.00 - $34.99
500

$
30.38

1.4
17

500

$
30.38

1.4

$
17

35.00 - 39.99
20,854

37.13

5.4
599

5,379

35.39

4.8

164

40.00 - 44.99
35,659

43.95

8.0
782

2,008

44.43

6.7

43

45.00 - 49.99
12,961

46.61

7.7
250

—

—

—

—

50.00 - 70.00
17,631

66.32

9.7
$
—

—

—

—

$
—

 
87,605

 
 
$
1,648

7,887

 
 
$
224
Weighted Average Assumptions Estimate The Fair Value Of Options Granted
 The following weighted average assumptions were used to estimate the fair value of options granted:

 
Six months ended June 30,
 
2017
2016
Risk-free interest rate
2.12
%
1.43
%
Expected dividend yield
2.60
%
3.86
%
Volatility factor
25.80
%
30.76
%
Expected life of option
7.0 years

7.0 years
Restricted Shares Activity And Related Information
A summary of the Company’s restricted shares activity and related information is presented below:
 
Six months ended June 30,
 
2017
2016
Restricted Awards
Average Market Price at Grant
Restricted Awards
Average Market Price at Grant
Outstanding at January 1
182,122

$
39.40

172,921

$
37.83

Granted
26,539

64.50

27,451

45.99

Forfeited
(1,850
)
42.25

—

—

Vested
(36,778
)
35.08

(21,700
)
33.89

Outstanding at June 30
170,033

$
44.22

178,672

$
39.13



Information regarding stock-based compensation associated with restricted shares is provided in the following table (in thousands):

 
Six months ended June 30,
 
2017
2016
Stock-based compensation expense associated with restricted shares
$
725

$
661

 
 
 
At period-end:
June 30, 2017
 
Unrecognized stock-based compensation expense associated with restricted shares
$
3,939

 
Weighted average period (in years) in which the above amount is expected to be
 
 
   recognized
3.5

 
Net Periodic Pension Cost Of The Defined Benefit Plan
The following table presents details of the Company's activities pursuant to these plans (in thousands):
 
Three months ended June 30,
Six months ended June 30,
2017
2016
2017
2016
Components of net periodic cost:
 
 
 
 
Interest cost
$
193

$
205

$
386

$
410

Expected return on plan assets
(294
)
(288
)
(589
)
(577
)
Net amortization and deferral
215

212

425

424

Net Periodic Pension Cost
$
114

$
129

$
222

$
257

 
 
 
 
 
401(k) Plan expense
$
196

$
201

$
447

$
418

 
 
 
 
 
Defined Benefit Plan contributions
$
—

$
—

$
—

$
—