Allowance for Loan Losses and Reserve for Unfunded Lending Commitments (Tables)
 9 Months Ended
Sep. 30, 2016
Receivables [Abstract]  
Schedule of changes in the allowance for loan losses
Changes in the allowance for loan losses and the reserve for unfunded lending commitments as of the indicated dates and periods are presented below (dollars in thousands):
 
Nine Months Ended 
 September 30, 2016
 
Year Ended December 31,
2015
 
Nine Months Ended 
 September 30, 2015
Allowance for Loan Losses
 
 
 
 
 
Balance, beginning of period
$
12,601

 
$
12,427

 
$
12,427

Provision for loan losses
200

 
950

 
700

Charge-offs
(245
)
 
(1,200
)
 
(883
)
Recoveries
201

 
424

 
367

Balance, end of period
$
12,757

 
$
12,601

 
$
12,611

 
 
 
 
 
 
Reserve for Unfunded Lending Commitments
 

 
 

 
 

Balance, beginning of period
$
184

 
$
163

 
$
163

Provision for unfunded commitments
11

 
21

 
26

Charge-offs
—

 
—

 
—

Balance, end of period
$
195

 
$
184

 
$
189

The reserve for unfunded loan commitments is included in other liabilities.
The following table presents changes in the Company's allowance for loan losses by portfolio segment and the related loan balance total by segment at and for the nine months ended September 30, 2016 (dollars in thousands):
 
Commercial
 
Commercial
Real Estate
 
Residential
Real Estate
 
Consumer
 
Total
Allowance for Loan Losses
 
 
 
 
 
 
 
 
 
Balance at December 31, 2015:
$
2,065

 
$
6,930

 
$
3,546

 
$
60

 
$
12,601

Charge-offs
(40
)
 
—

 
(63
)
 
(142
)
 
(245
)
Recoveries
26

 
22

 
56

 
97

 
201

Provision for loan losses
164

 
39

 
(42
)
 
39

 
200

Balance at September 30, 2016:
$
2,215

 
$
6,991

 
$
3,497

 
$
54

 
$
12,757

 
 
 
 
 
 
 
 
 
 
Balance at September 30, 2016:
 

 
 

 
 

 
 

 
 

 
 
 
 
 
 
 
 
 
 
Allowance for Loan Losses
 

 
 

 
 

 
 

 
 

Individually evaluated for impairment
$
—

 
$
—

 
$
22

 
$
—

 
$
22

Collectively evaluated for impairment
2,201

 
6,867

 
3,249

 
54

 
12,371

Acquired impaired loans
14

 
124

 
226

 
—

 
364

Total
$
2,215

 
$
6,991

 
$
3,497

 
$
54

 
$
12,757

 
 
 
 
 
 
 
 
 
 
Loans
 

 
 

 
 

 
 

 
 

Individually evaluated for impairment
$
92

 
$
2,286

 
$
2,683

 
$
19

 
$
5,080

Collectively evaluated for impairment
203,588

 
530,892

 
308,654

 
5,248

 
1,048,382

Acquired impaired loans
504

 
13,307

 
15,912

 
16

 
29,739

Total
$
204,184

 
$
546,485

 
$
327,249

 
$
5,283

 
$
1,083,201

The following table presents changes in the Company's allowance for loan losses by portfolio segment and the related loan balance total by segment at and for the year ended December 31, 2015 (dollars in thousands):
 
Commercial
 
Commercial
Real Estate
 
Residential
Real Estate
 
Consumer
 
Total
Allowance for Loan Losses
 
 
 
 
 
 
 
 
 
Balance at December 31, 2014:
$
1,818

 
$
6,814

 
$
3,715

 
$
80

 
$
12,427

Charge-offs
(175
)
 
(482
)
 
(323
)
 
(220
)
 
(1,200
)
Recoveries
32

 
124

 
139

 
129

 
424

Provision for loan losses
390

 
474

 
15

 
71

 
950

Balance at December 31, 2015:
$
2,065

 
$
6,930

 
$
3,546

 
$
60

 
$
12,601

 
 
 
 
 
 
 
 
 
 
Balance at December 31, 2015:
 

 
 

 
 

 
 

 
 

 
 
 
 
 
 
 
 
 
 
Allowance for Loan Losses
 

 
 

 
 

 
 

 
 

Individually evaluated for impairment
$
—

 
$
9

 
$
26

 
$
—

 
$
35

Collectively evaluated for impairment
2,065

 
6,750

 
3,284

 
60

 
12,159

Acquired impaired loans
—

 
171

 
236

 
—

 
407

Total
$
2,065

 
$
6,930

 
$
3,546

 
$
60

 
$
12,601

 
 
 
 
 
 
 
 
 
 
Loans
 

 
 

 
 

 
 

 
 

Individually evaluated for impairment
$
95

 
$
2,245

 
$
2,346

 
$
21

 
$
4,707

Collectively evaluated for impairment
176,798

 
487,177

 
297,281

 
5,684

 
966,940

Acquired impaired loans
588

 
13,732

 
19,256

 
302

 
33,878

Total
$
177,481

 
$
503,154

 
$
318,883

 
$
6,007

 
$
1,005,525