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LOANS
12 Months Ended
Dec. 31, 2016
Receivables [Abstract]  
LOANS
LOANS

Major classifications of loans at December 31 were as follows (in thousands):
 
2016
 
2015
Commercial and industrial
$
41,878

 
45,275

Commercial, secured by real estate
477,275

 
419,633

Residential real estate
265,788

 
273,139

Consumer
19,173

 
18,510

Agricultural
14,802

 
13,479

Other loans, including deposit overdrafts
633

 
665

 
819,549

 
770,701

Deferred origination costs, net
254

 
237

 
819,803

 
770,938

Less allowance for loan losses
3,575

 
3,129

Loans-net
$
816,228

 
767,809



Loans acquired from the mergers with Eaton National and BNB were recorded at fair value with no carryover of the acquired entity's previously established allowance for loan losses.  The excess of expected cash flows over the estimated fair value of acquired loans is recognized as interest income over the remaining contractual lives of the loans using the level yield method. Subsequent decreases in expected cash flows will require additions to the allowance for loan losses.  Subsequent improvements in expected cash flows result in the recognition of additional interest income over the then-remaining contractual lives of the loans. Management estimated the cash flows expected to be collected at acquisition using a third-party risk model, which incorporated the estimate of current key assumptions, such as default rates, severity, and prepayment speeds.

Impaired loans acquired are accounted for under FASB ASC 310-30.  Factors considered in evaluating whether an acquired loan was impaired include delinquency status and history, updated borrower credit status, collateral information, and current loan-to-value information.  The difference between contractually required payments at the time of acquisition and the cash flows expected to be collected is referred to as the nonaccretable difference.  The interest component of the cash flows expected to be collected is referred to as the accretable yield and is recognized as interest income over the remaining contractual life of the loan using the level yield method.   Subsequent decreases in expected cash flows will require additions to the allowance for loan losses.  Subsequent improvements in expected cash flows will result in a reclassification from the nonaccretable difference to the accretable yield.

The following table provides certain information at the acquisition date on loans acquired from BNB on April 30, 2015 and from Eaton National on January 24, 2014, not including loans considered to be impaired (in thousands):
 
BNB
 
Eaton National
Contractually required principal at acquisition
$
32,174

 
102,483

Less fair value adjustment
199

 
1,347

Fair value of acquired loans
$
31,975

 
101,136

 
 
 
 

Contractual cash flows not expected to be collected
$
195

 
1,702



The following table provides details on acquired impaired loans obtained through the mergers with BNB and Eaton National that are accounted for in accordance with FASB ASC 310-30 (in thousands):
 
BNB
 
Eaton National
Contractually required principal at acquisition
$
3,511

 
23,414

Contractual cash flows not expected to be collected (nonaccretable difference)
(404
)
 
(6,088
)
Expected cash flows at acquisition
3,107

 
17,326

Interest component of expected cash flows (accretable discount)
(413
)
 
(2,163
)
Fair value of acquired impaired loans
$
2,694

 
15,163















Non-accrual, past-due, and accruing restructured loans at December 31 were as follows (in thousands):
 
2016
 
2015
Non-accrual loans:
 
 
 
Commercial and industrial
$

 

Commercial, secured by real estate
4,312

 
876

Agricultural
334

 
48

Residential real estate
1,079

 
799

Total non-accrual loans
5,725

 
1,723

Past-due 90 days or more and still accruing
23

 
559

Total non-accrual and past-due 90 days or more and still accruing
5,748

 
2,282

Accruing restructured loans
11,731

 
13,723

Total
$
17,479

 
16,005

 
 
 
 
Percentage of total non-accrual and past-due 90 days or more and still accruing to total loans
0.70
%
 
0.30
%
 
 
 
 
Percentage of total non-accrual, past-due 90 days or more and still accruing, and accruing restructured loans to total loans
2.13
%
 
2.08
%


Interest income that would have been recorded during 2016 and 2015 if loans on non-accrual status at December 31, 2016 and 2015 had been current and in accordance with their original terms was approximately $220,000 and $137,000, respectively.

The Company is not committed to lend additional funds to debtors whose loans have been modified to provide a reduction or deferral of principal or interest because of deterioration in the financial position of the borrower.
The allowance for loan losses and recorded investment in loans for the years ended December 31 were as follows (in thousands):
 
Commercial
& Industrial
 
Commercial,
Secured by
Real Estate
 
Residential
Real Estate
 
Consumer
 
Agricultural
 
Other
 
Total
December 31, 2016
 
 
 
 
 
 
 
 
 
 
 
 
 
Allowance for loan losses:
 
 
 
 
 
 
 
 
 
 
 
 
 
Balance, beginning of year
$
244

 
1,908

 
854

 
54

 
66

 
3

 
3,129

Provision charged to expenses
314

 
358

 
106

 
74

 
(6
)
 
67

 
913

Losses charged off
(234
)
 
(185
)
 
(127
)
 
(85
)
 

 
(119
)
 
(750
)
Recoveries
26

 
98

 
52

 
53

 

 
54

 
283

Balance, end of year
$
350

 
2,179

 
885

 
96

 
60

 
5

 
3,575

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Individually evaluated for impairment
$
9

 
55

 
100

 
13

 

 

 
177

Collectively evaluated for impairment
341

 
1,832

 
785

 
83

 
60

 
5

 
3,106

Acquired credit impaired loans

 
292

 

 

 

 

 
292

Balance, end of year
$
350

 
2,179

 
885

 
96

 
60

 
5

 
3,575

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Loans:
 

 
 

 
 

 
 

 
 

 
 

 
 

Individually evaluated for impairment
$
337

 
12,580

 
1,518

 
52

 
334

 

 
14,821

Collectively evaluated for impairment
41,466

 
458,059

 
262,266

 
19,192

 
14,475

 
178

 
795,636

Acquired credit impaired loans
98

 
6,305

 
2,471

 
17

 

 
455

 
9,346

Balance, end of year
$
41,901

 
476,944

 
266,255

 
19,261

 
14,809

 
633

 
819,803

 
 
 
 
 
 
 
 
 
 
 
 
 
 
December 31, 2015
 

 
 

 
 

 
 

 
 

 
 

 
 

Allowance for loan losses:
 

 
 

 
 

 
 

 
 

 
 

 
 

Balance, beginning of year
$
129

 
1,990

 
926

 
63

 
11

 
2

 
3,121

Provision charged to expenses
208

 
955

 
125

 
(17
)
 
55

 
40

 
1,366

Losses charged off
(100
)
 
(1,133
)
 
(304
)
 
(52
)
 
(67
)
 
(74
)
 
(1,730
)
Recoveries
7

 
96

 
107

 
60

 
67

 
35

 
372

Balance, end of year
$
244

 
1,908

 
854

 
54

 
66

 
3

 
3,129

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Individually evaluated for impairment
$
9

 
306

 
48

 

 

 

 
363

Collectively evaluated for impairment
235

 
1,602

 
806

 
54

 
66

 
3

 
2,766

Acquired credit impaired loans

 

 

 

 

 

 

Balance, end of year
$
244

 
1,908

 
854

 
54

 
66

 
3

 
3,129

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Loans:
 

 
 

 
 

 
 

 
 

 
 

 
 

Individually evaluated for impairment
$
370

 
12,351

 
1,541

 
56

 

 

 
14,318

Collectively evaluated for impairment
43,726

 
399,092

 
269,001

 
18,516

 
13,438

 
179

 
743,952

Acquired credit impaired loans
1,191

 
7,877

 
3,039

 
27

 
48

 
486

 
12,668

Balance, end of year
$
45,287

 
419,320

 
273,581

 
18,599

 
13,486

 
665

 
770,938

 
Commercial
& Industrial
 
Commercial,
Secured by
Real Estate
 
Residential
Real Estate
 
Consumer
 
Agricultural
 
Other
 
Total
December 31, 2014
 
 
 
 
 
 
 
 
 
 
 
 
 
Allowance for loan losses:
 
 
 
 
 
 
 
 
 
 
 
 
 
Balance, beginning of year
$
175

 
2,520

 
826

 
66

 

 
1

 
3,588

Provision charged to expenses
173

 
(20
)
 
712

 
18

 
11

 
36

 
930

Losses charged off
(261
)
 
(573
)
 
(652
)
 
(129
)
 

 
(79
)
 
(1,694
)
Recoveries
42

 
63

 
40

 
108

 

 
44

 
297

Balance, end of year
$
129

 
1,990

 
926

 
63

 
11

 
2

 
3,121

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Individually evaluated for impairment
$
10

 
415

 
89

 

 

 

 
514

Collectively evaluated for impairment
119

 
1,273

 
836

 
63

 
11

 
2

 
2,304

Acquired credit impaired loans

 
302

 
1

 

 

 

 
303

Balance, end of year
$
129

 
1,990

 
926

 
63

 
11

 
2

 
3,121



The risk characteristics of LCNB's material loan portfolio segments were as follows:

Commercial and Industrial Loans. LCNB’s commercial and industrial loan portfolio consists of loans for various purposes, including loans to fund working capital requirements (such as inventory and receivables financing) and purchases of machinery and equipment.  LCNB offers a variety of commercial and industrial loan arrangements, including term loans, balloon loans, and lines of credit.  Most commercial and industrial loans have a variable rate, with adjustment periods ranging from one month to five years. Adjustments are generally based on a publicly available index rate plus a margin.  The margin varies based on the terms and collateral securing the loan.  Commercial and industrial loans are offered to businesses and professionals for short and medium terms on both a collateralized and uncollateralized basis. Commercial and industrial loans typically are underwritten on the basis of the borrower’s ability to make repayment from the cash flow of the business.  Collateral, when obtained, may include liens on furniture, fixtures, equipment, inventory, receivables, or other assets.  As a result, such loans involve complexities, variables, and risks that require thorough underwriting and more robust servicing than other types of loans.

Commercial, Secured by Real Estate Loans.  Commercial real estate loans include loans secured by a variety of commercial, retail, and office buildings, religious facilities, multifamily (more than two-family) residential properties, construction and land development loans, and other land loans. Commercial real estate loan products generally amortize over five to twenty-five years and are payable in monthly principal and interest installments.  Some have balloon payments due within one to ten years after the origination date.  Many have adjustable interest rates with adjustment periods ranging from one to ten years, some of which are subject to established “floor” interest rates.

Commercial real estate loans are underwritten based on the ability of the property, in the case of income producing property, or the borrower’s business to generate sufficient cash flow to amortize the debt. Secondary emphasis is placed upon global debt service, collateral value, financial strength of any guarantors, and other factors. Commercial real estate loans are generally originated with a 75% maximum loan to appraised value ratio.

Residential Real Estate Loans.  Residential real estate loans include loans secured by first or second mortgage liens on one to two-family residential property.  Home equity lines of credit and mortgage loans secured by owner-occupied agricultural property are included in this category.  First and second mortgage loans are generally amortized over five to thirty years with monthly principal and interest payments.  Home equity lines of credit generally have a five year draw period with interest only payments followed by a repayment period with monthly payments based on the amount outstanding.  LCNB offers both fixed and adjustable rate mortgage loans.  Adjustable rate loans are available with adjustment periods ranging between one to ten years and adjust according to an established index plus a margin, subject to certain floor and ceiling rates.  Home equity lines of credit have a variable rate based on the Wall Street Journal prime rate plus a margin.

LCNB does not originate reverse mortgage loans or residential real estate loans generally considered to be “subprime.”
Residential real estate loans are underwritten primarily based on the borrower’s ability to repay, prior credit history, and the value of the collateral.  LCNB requires private mortgage insurance for first mortgage loans that have a loan to appraised value ratio of greater than 80%.
Consumer Loans.  LCNB’s portfolio of consumer loans generally includes secured and unsecured loans to individuals for household, family and other personal expenditures.  Secured loans include loans to fund the purchase of automobiles, recreational vehicles, boats, and similar acquisitions. Consumer loans made by LCNB generally have fixed rates and terms ranging up to 72 months, depending upon the nature of the collateral, size of the loan, and other relevant factors.

Consumer loans generally have higher interest rates, but pose additional risks of collectibility and loss when compared to certain other types of loans. Collateral, if present, is generally subject to damage, wear, and depreciation.  The borrower’s ability to repay is of primary importance in the underwriting of consumer loans.

Agricultural Loans.  LCNB’s portfolio of agricultural loans includes loans for financing agricultural production or for financing the purchase of equipment used in the production of agricultural products.  LCNB’s agricultural loans are generally secured by farm machinery, livestock, crops, vehicles, or other agricultural-related collateral.

The Company uses a risk-rating system to quantify loan quality.  A loan is assigned to a risk category based on relevant information about the ability of the borrower to service the debt including, but not limited to, current financial information, historical payment experience, credit documentation, public information, and current economic trends.  The categories used are:

Pass – loans categorized in this category are higher quality loans that do not fit any of the other categories described below.
Other Assets Especially Mentioned (OAEM) - loans in this category are currently protected but are potentially weak.  These loans constitute a risk but not to the point of justifying a classification of substandard.  The credit risk may be relatively minor yet constitute an undue risk in light of the circumstances surrounding a specific asset.
Substandard – loans in this category are inadequately protected by the current sound net worth and paying capacity of the obligor or of the collateral pledged, if any.  Assets so classified must have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt.  They are characterized by the possibility that the Company will sustain some loss if the deficiencies are not corrected.
Doubtful – loans classified in this category have all the weaknesses inherent in loans classified substandard with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable.

An analysis of the Company’s loan portfolio by credit quality indicators at December 31 is as follows (in thousands):
 
Pass
 
OAEM
 
Substandard
 
Doubtful
 
Total
December 31, 2016
 
 
 
 
 
 
 
 
 
Commercial & industrial
$
41,178

 
304

 
419

 

 
41,901

Commercial, secured by real estate
443,781

 
5,479

 
27,684

 

 
476,944

Residential real estate
261,839

 
442

 
3,974

 

 
266,255

Consumer
19,182

 

 
79

 

 
19,261

Agricultural
13,311

 

 
1,498

 

 
14,809

Other
633

 

 

 

 
633

Total
$
779,924

 
6,225

 
33,654

 

 
819,803

 
 
 
 
 
 
 
 
 
 
December 31, 2015
 

 
 

 
 

 
 

 
 

Commercial & industrial
$
44,596

 

 
691

 

 
45,287

Commercial, secured by real estate
397,938

 
9,316

 
12,066

 

 
419,320

Residential real estate
267,567

 
1,935

 
4,079

 

 
273,581

Consumer
18,528

 

 
71

 

 
18,599

Agricultural
12,246

 
850

 
390

 

 
13,486

Other
665

 

 

 

 
665

Total
$
741,540

 
12,101

 
17,297

 

 
770,938



The Company evaluates the loan risk grading system definitions and allowance for loan loss methodology on an ongoing basis. No significant changes were made to either during the past year.
A loan portfolio aging analysis at December 31 is as follows (in thousands):
 
30-59 Days
Past Due
 
60-89 Days
Past Due
 
Greater Than
90 Days
 
Total
Past Due
 
Current
 
Total Loans
Receivable
 
Total Loans Greater Than
90 Days and
Accruing
December 31, 2016
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial & industrial
$
19

 

 

 
19

 
41,882

 
41,901

 

Commercial, secured by real estate
99

 
69

 
127

 
295

 
476,649

 
476,944

 

Residential real estate
686

 
80

 
727

 
1,493

 
264,762

 
266,255

 
20

Consumer
59

 
16

 
3

 
78

 
19,183

 
19,261

 
3

Agricultural
125

 

 

 
125

 
14,684

 
14,809

 

Other
115

 

 

 
115

 
518

 
633

 

Total
$
1,103

 
165

 
857

 
2,125

 
817,678

 
819,803

 
23

 
 
 
 
 
 
 
 
 
 
 
 
 
 
December 31, 2015
 

 
 

 
 

 
 

 
 

 
 

 
 

Commercial & industrial
$

 

 

 

 
45,287

 
45,287

 

Commercial, secured by real estate
73

 
81

 
876

 
1,030

 
418,290

 
419,320

 

Residential real estate
777

 
198

 
1,124

 
2,099

 
271,482

 
273,581

 
516

Consumer
62

 
7

 
43

 
112

 
18,487

 
18,599

 
43

Agricultural

 

 

 

 
13,486

 
13,486

 

Other
109

 

 

 
109

 
556

 
665

 

Total
$
1,021

 
286

 
2,043

 
3,350

 
767,588

 
770,938

 
559



Impaired loans for the years ended December 31 were as follows (in thousands):
 
Recorded
Investment
 
Unpaid
Principal
Balance
 
Related
Allowance
 
Average
Recorded
Investment
 
Interest
Income
Recognized
December 31, 2016
 
 
 
 
 
 
 
 
 
With no related allowance recorded:
 
 
 
 
 
 
 
 
 
Commercial & industrial
$
109

 
263

 

 
998

 
151

Commercial, secured by real estate
14,195

 
15,522

 

 
15,274

 
1,140

Residential real estate
3,238

 
4,286

 

 
3,736

 
369

Consumer
26

 
27

 

 
37

 
29

Agricultural
334

 
334

 

 
392

 
136

Other
455

 
629

 

 
481

 
77

Total
$
18,357

 
21,061

 

 
20,918

 
1,902

 
 
 
 
 
 
 
 
 
 
With an allowance recorded:
 

 
 

 
 

 
 

 
 

Commercial & industrial
$
326

 
326

 
9

 
341

 
19

Commercial, secured by real estate
4,690

 
4,946

 
347

 
4,194

 
257

Residential real estate
751

 
751

 
100

 
651

 
36

Consumer
43

 
43

 
13

 
43

 
3

Agricultural

 

 

 

 

Other

 

 

 

 

Total
$
5,810

 
6,066

 
469

 
5,229

 
315

 
 
 
 
 
 
 
 
 
 
Total:
 

 
 

 
 

 
 

 
 

Commercial & industrial
$
435

 
589

 
9

 
1,339

 
170

Commercial, secured by real estate
18,885

 
20,468

 
347

 
19,468

 
1,397

Residential real estate
3,989

 
5,037

 
100

 
4,387

 
405

Consumer
69

 
70

 
13

 
80

 
32

Agricultural
334

 
334

 

 
392

 
136

Other
455

 
629

 

 
481

 
77

Total
$
24,167

 
27,127

 
469

 
26,147

 
2,217

 
 
Recorded
Investment
 
Unpaid
Principal
Balance
 
Related
Allowance
 
Average
Recorded
Investment
 
Interest
Income
Recognized
December 31, 2015
 
 
 
 
 
 
 
 
 
With no related allowance recorded:
 
 
 
 
 
 
 
 
 
Commercial & industrial
$
1,205

 
1,500

 

 
1,467

 
206

Commercial, secured by real estate
16,345

 
18,335

 

 
18,575

 
2,229

Residential real estate
3,734

 
5,055

 

 
4,092

 
453

Consumer
81

 
109

 

 
106

 
25

Agricultural
48

 
151

 

 
81

 
487

Other
486

 
701

 

 
510

 
82

Total
$
21,899

 
25,851

 

 
24,831

 
3,482

 
 
 
 
 
 
 
 
 
 
With an allowance recorded:
 

 
 

 
 

 
 

 
 

Commercial & industrial
$
356

 
356

 
9

 
370

 
21

Commercial, secured by real estate
3,883

 
4,014

 
306

 
4,007

 
114

Residential real estate
846

 
958

 
48

 
864

 
37

Consumer
2

 
1

 

 

 

Agricultural

 

 

 

 

Other

 

 

 

 

Total
$
5,087

 
5,329

 
363

 
5,241

 
172

 
 
 
 
 
 
 
 
 
 
Total:
 

 
 

 
 

 
 

 
 

Commercial & industrial
$
1,561

 
1,856

 
9

 
1,837

 
227

Commercial, secured by real estate
20,228

 
22,349

 
306

 
22,582

 
2,343

Residential real estate
4,580

 
6,013

 
48

 
4,956

 
490

Consumer
83

 
110

 

 
106

 
25

Agricultural
48

 
151

 

 
81

 
487

Other
486

 
701

 

 
510

 
82

Total
$
26,986

 
31,180

 
363

 
30,072

 
3,654



 
Average
Recorded
Investment
 
Interest
Income
Recognized
December 31, 2014
 
 
 
With no related allowance recorded:
 
 
 
Commercial & industrial
1,823

 
161

Commercial, secured by real estate
23,360

 
1,373

Residential real estate
4,645

 
379

Consumer
179

 
14

Agricultural
121

 
20

Other
550

 
43

Total
30,678

 
1,990

 
 
 
 
With an allowance recorded:
 
 
 
Commercial & industrial
319

 
19

Commercial, secured by real estate
4,108

 
117

Residential real estate
1,026

 
44

Consumer
18

 
2

Agricultural

 

Other

 

Total
5,471

 
182

 
 
 
 
Total:
 
 
 
Commercial & industrial
2,142

 
180

Commercial, secured by real estate
27,468

 
1,490

Residential real estate
5,671

 
423

Consumer
197

 
16

Agricultural
121

 
20

Other
550

 
43

Total
36,149

 
2,172



Of the interest income recognized on impaired loans during 2016, 2015, and 2014, approximately $51,000, $96,000, and $8,000, respectively, were recognized on a cash basis. The Company continued to accrue interest on certain loans classified as impaired during 2016, 2015, and 2014 because they were restructured or considered well secured and in the process of collection.











Loan modifications that were classified as troubled debt restructurings during the years ended December 31 were as follows (dollars in thousands):
 
2016
 
2015
 
2014
 
Number
of Loans
 
Pre-Modification Recorded Balance
 
Post-Modification Recorded Balance
 
Number
of Loans
 
Pre-Modification Recorded Balance
 
Post-Modification Recorded Balance
 
Number
of Loans
 
Pre-Modification Recorded Balance
 
Post-Modification Recorded Balance
Commercial and industrial

 
$

 
$

 

 
$

 
$

 
8

 
$
658

 
$
340

Commercial, secured by real estate
4

 
2,142

 
2,215

 
1

 
75

 
74

 
2

 
896

 
1,214

Residential real estate
6

 
139

 
139

 
7

 
217

 
221

 
2

 
82

 
82

Consumer
3

 
39

 
39

 
2

 
9

 
9

 
3

 
40

 
40

 
13

 
$
2,320

 
$
2,393

 
10

 
$
301

 
$
304

 
15

 
$
1,676

 
$
1,676



The pre-modification and post-modification recorded balances for the commercial and industrial and commercial, secured by real estate categories in 2014 changed because a borrower had multiple loans classified as commercial and industrial and a loan classified as commercial, secured by real estate, which were all modified into a loan classified as commercial, secured by real estate.































Each restructured loan is separately negotiated with the borrower and includes terms and conditions that reflect the borrower’s ability to pay the debt as modified.  Modifications may include interest only payments for a period of time, temporary or permanent reduction of the loan’s interest rate, capitalization of delinquent interest, or extensions of the maturity date. Post-modification balances of newly restructured troubled debt by type of modification for the years ended December 31 were as follows (dollars in thousands):
 
Term Modification
 
Rate Modification
 
Interest Only
 
Combination
 
Total Modifications
December 31, 2016
 
 
 
 
 
 
 
 
 
Commercial & industrial

 

 

 

 

Commercial, secured by real estate
1,539

 

 
304

 
372

 
2,215

Residential real estate
38

 
47

 

 
54

 
139

Consumer

 
28

 

 
11

 
39

Total
1,577

 
75

 
304

 
437

 
2,393

 
 
 
 
 
 
 
 
 
 
December 31, 2015
 
 
 
 
 
 
 
 
 
Commercial & industrial

 

 

 

 

Commercial, secured by real estate
74

 

 

 

 
74

Residential real estate
221

 

 

 

 
221

Consumer
9

 

 

 

 
9

Total
304

 

 

 

 
304

 
 
 
 
 
 
 
 
 
 
December 31, 2014
 
 
 
 
 
 
 
 
 
Commercial & industrial
340

 

 

 

 
340

Commercial, secured by real estate

 
1,136

 

 
78

 
1,214

Residential real estate
82

 

 

 

 
82

Consumer
38

 

 

 
2

 
40

Total
460

 
1,136

 

 
80

 
1,676



LCNB is not committed to lend additional funds to borrowers whose loan terms were modified in a troubled debt restructuring.

There were no troubled debt restructurings that subsequently defaulted within twelve months of the restructuring date for the years ended December 31, 2016, 2015, and 2014. Two commercial, secured by real estate loans to the same borrower totaling $1,236,000 that were modified during the fourth quarter 2016 subsequently defaulted in February 2017.

All troubled debt restructurings are considered impaired loans. The allowance for loan loss on such restructured loans is based on the present value of future expected cash flows.

Approximately $881,000 of impaired loans without a valuation allowance and $1,168,000 of impaired loans with a valuation allowance at December 31, 2016 consisted of loans that were modified during 2016 and were determined to be troubled debt restructurings.  Approximately $147,000 of impaired loans without a valuation allowance and $125,000 of impaired loans with a valuation allowance at December 31, 2015 consisted of loans that were modified during 2015 and were determined to be troubled debt restructurings.

Mortgage loans sold to and serviced for the Federal Home Loan Mortgage Corporation and other investors are not included in the accompanying consolidated balance sheets.  The unpaid principal balances of those loans at December 31, 2016, 2015 and 2014 were approximately $100,982,000, $111,837,000, and $120,433,000, respectively.
 
Mortgage servicing right assets are included in core deposit and other intangibles in the consolidated balance sheets.  Amortization of mortgage servicing rights is an adjustment to loan servicing income, which is included with other operating income in the consolidated statements of income.  Activity in the mortgage servicing rights portfolio during the years ended December 31 was as follows (in thousands):
 
2016
 
2015
 
2014
Balance, beginning of year
$
488

 
591

 
498

Amount capitalized to mortgage servicing rights
109

 
78

 
292

Amortization of mortgage servicing rights
(169
)
 
(181
)
 
(199
)
Balance, end of year
$
428

 
488

 
591