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Allowance for Loan Losses and Reserve for Unfunded Lending Commitments (Tables)
 12 Months Ended
Dec. 31, 2018
Provision for Loan and Lease Losses [Abstract]  
Schedule of changes in the allowance for loan losses
Changes in the allowance for loan losses and the reserve for unfunded lending commitments for each of the years in the three-year period ended December 31, 2018, are presented below (dollars in thousands):
 
Years Ended December 31,
 
2018
 
2017
 
2016
Allowance for Loan Losses
 
 
 
 
 
Balance, beginning of year
$
13,603

 
$
12,801

 
$
12,601

Provision for (recovery of) loan losses
(103
)
 
1,016

 
250

Charge-offs
(1,020
)
 
(690
)
 
(326
)
Recoveries
325

 
476

 
276

Balance, end of year
$
12,805

 
$
13,603

 
$
12,801

 
 
 
 
 
 
 
Years Ended December 31,
 
2018
 
2017
 
2016
Reserve for Unfunded Lending Commitments
 

 
 

 
 

Balance, beginning of year
$
206

 
$
203

 
$
184

Provision for unfunded commitments
11

 
3

 
19

Charge-offs
—

 
—

 
—

Balance, end of year
$
217

 
$
206

 
$
203

The following table presents the Company's allowance for loan losses by portfolio segment and the related loan balance total by segment for the year ended December 31, 2018 (dollars in thousands):
  
Commercial
 
Commercial Real Estate
 
Residential Real Estate
 
Consumer
 
Total
Allowance for Loan Losses
 
 
 
 
 
 
 
 
 
Balance at December 31, 2017
$
2,413

 
$
8,321

 
$
2,825

 
$
44

 
$
13,603

Charge-offs
(787
)
 
(11
)
 
(86
)
 
(136
)
 
(1,020
)
Recoveries
69

 
10

 
149

 
97

 
325

Provision
842

 
(1,074
)
 
89

 
40

 
(103
)
Balance at December 31, 2018
$
2,537

 
$
7,246

 
$
2,977

 
$
45

 
$
12,805

 
 
 
 
 
 
 
 
 
 
Balance at December 31, 2018:
 

 
 

 
 

 
 

 
 

 
 
 
 
 
 
 
 
 
 
Allowance for Loan Losses
 

 
 

 
 

 
 

 
 

Individually evaluated for impairment
$
55

 
$
—

 
$
9

 
$
—

 
$
64

Collectively evaluated for impairment
2,482

 
7,211

 
2,822

 
45

 
12,560

Purchased credit impaired loans
—

 
35

 
146

 
—

 
181

Total
$
2,537

 
$
7,246

 
$
2,977

 
$
45

 
$
12,805

 
 
 
 
 
 
 
 
 
 
Loans
 

 
 

 
 

 
 

 
 

Individually evaluated for impairment
$
90

 
$
376

 
$
868

 
$
—

 
$
1,334

Collectively evaluated for impairment
285,431

 
742,365

 
302,657

 
5,078

 
1,335,531

Purchased credit impaired loans
451

 
10,299

 
9,846

 
15

 
20,611

Total
$
285,972

 
$
753,040

 
$
313,371

 
$
5,093

 
$
1,357,476

The following table presents the Company's allowance for loan losses by portfolio segment and the related loan balance total by segment for the year ended December 31, 2017 (dollars in thousands):
 
Commercial
 
Commercial Real Estate
 
Residential Real Estate
 
Consumer
 
Total
Allowance for Loan Losses
 
 
 
 
 
 
 
 
 
Balance at December 31, 2016
$
2,095

 
$
7,355

 
$
3,303

 
$
48

 
$
12,801

Charge-offs
(282
)
 
(93
)
 
(172
)
 
(143
)
 
(690
)
Recoveries
223

 
60

 
85

 
108

 
476

Provision
377

 
999

 
(391
)
 
31

 
1,016

Balance at December 31, 2017
$
2,413

 
$
8,321

 
$
2,825

 
$
44

 
$
13,603

 
 
 
 
 
 
 
 
 
 
Balance at December 31, 2017:
 

 
 

 
 

 
 

 
 

 
 
 
 
 
 
 
 
 
 
Allowance for Loan Losses
 

 
 

 
 

 
 

 
 

Individually evaluated for impairment
$
154

 
$
—

 
$
13

 
$
—

 
$
167

Collectively evaluated for impairment
2,259

 
8,203

 
2,645

 
44

 
13,151

Purchased credit impaired loans
—

 
118

 
167

 
—

 
285

Total
$
2,413

 
$
8,321

 
$
2,825

 
$
44

 
$
13,603

 
 
 
 
 
 
 
 
 
 
Loans
 

 
 

 
 

 
 

 
 

Individually evaluated for impairment
$
206

 
$
862

 
$
2,144

 
$
5

 
$
3,217

Collectively evaluated for impairment
251,185

 
747,819

 
306,066

 
4,408

 
1,309,478

Purchased credit impaired loans
275

 
12,167

 
10,973

 
15

 
23,430

Total
$
251,666

 
$
760,848

 
$
319,183

 
$
4,428

 
$
1,336,125