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INVESTMENT SECURITIES (Tables)
 12 Months Ended
Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]  
Portfolio of Available-for-Sale Investment Securities
The amortized cost and estimated fair value of securities available-for-sale along with gross unrealized gains and losses are summarized as follows (in thousands):
 
 
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Fair Value
December 31, 2018
 
 
 
 
 
 
 
 
U.S. Agencies
 
$
3,016

 
$
56

 
$
—

 
$
3,072

State, county, and municipal securities
 
44,639

 
214

 
765

 
44,088

Mortgage-backed securities
 
370,706

 
1,092

 
5,921

 
365,877

Corporate debt securities
 
25,567

 
433

 
1,283

 
24,717

Total debt securities available-for-sale
 
$
443,928

 
$
1,795

 
$
7,969

 
$
437,754

 
 
 
 
 
 
 
 
 
December 31, 2017
 
 
 
 
 
 
 
 
State, county, and municipal securities
 
$
23,042

 
$
209

 
$
442

 
$
22,809

Mortgage-backed securities
 
263,467

 
915

 
4,863

 
259,519

Corporate debt securities
 
23,975

 
837

 
10

 
24,802

Total debt securities available-for-sale
 
$
310,484

 
$
1,961

 
$
5,315

 
$
307,130
Portfolio of Held-to-Maturity Securities
The amortized cost and estimated fair value of securities held-to-maturity along with gross unrealized gains and losses are summarized as follows (in thousands):
 
 
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Fair Value
December 31, 2018
 
 
 
 
 
 
 
 
State, county, and municipal securities
 
$
1,977

 
$
1

 
$
10

 
$
1,968

Mortgage-backed securities
 
35,782

 
—

 
776

 
35,006

Total debt securities held-to-maturity
 
$
37,759

 
$
1

 
$
786

 
$
36,974

 
 
 
 
 
 
 
 
 
December 31, 2017
 
 
 
 
 
 
 
 
State, county, and municipal securities
 
$
35,908

 
$
265

 
$
22

 
$
36,151

Mortgage-backed securities
 
45,144

 
171

 
546

 
44,769

Total debt securities held-to-maturity
 
$
81,052

 
$
436

 
$
568

 
$
80,920
Summary of Amortized Cost and Fair Value of Debt Securities by Contractual Maturity
The amortized cost and fair value of available-for-sale and held-to-maturity securities at December 31, 2018 by contractual maturity are shown below (in thousands). 
 
 
Amortized Cost
 
Fair Value
Available-for-sale:
 
 
 
 
Due after one year through five years
 
$
10,894

 
$
9,710

Due after five years through ten years
 
35,203

 
35,620

Due after ten years
 
27,125

 
26,547

Mortgage-backed securities¹
 
370,706

 
365,877

Total debt securities available-for-sale
 
$
443,928

 
$
437,754


 
 
Amortized Cost
 
Fair Value
Held-to-maturity:
 
 
 
 
Due in one year or less
 
$
766

 
$
766

Due after one year through five years
 
1,211

 
1,202

Mortgage-backed securities¹
 
35,782

 
35,006

Total debt securities held-to-maturity
 
$
37,759

 
$
36,974


¹Actual maturities may differ from contractual maturities because of rights to call or repay obligations with or without penalties and scheduled and unscheduled principal payments on mortgage-backed securities and collateralized mortgage obligations.
Schedule of Investment Securities with Unrealized Losses
The following summarizes the fair value of securities available-for-sale in an unrealized loss position as of the dates indicated (in thousands):
 
 
Less than 12 months
 
12 Months of More
 
Total
December 31, 2018
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
State, county, and municipal securities

 
$
2,573

 
$
11

 
$
19,539

 
$
754

 
$
22,112

 
$
765

Mortgage-backed securities
 
25,706

 
34

 
197,036

 
5,887

 
222,742

 
5,921

Corporate debt securities
 
3,307

 
1,283

 
—

 
—

 
3,307

 
1,283

Total
 
$
31,586

 
$
1,328

 
$
216,575

 
$
6,641

 
$
248,161

 
$
7,969

 
 
 
 
 
 
 
 
 
 
 
 
 
December 31, 2017
 
 
 
 
 
 
 
 
 
 
 
 
State, county, and municipal securities

 
$
596

 
$
5

 
$
12,716

 
$
437

 
$
13,312

 
$
442

Mortgage-backed securities
 
87,390

 
772

 
145,696

 
4,091

 
233,086

 
4,863

Corporate debt securities
 
2,990

 
10

 
—

 
—

 
2,990

 
10

Total
 
$
90,976

 
$
787

 
$
158,412

 
$
4,528

 
$
249,388

 
$
5,315



The following summarizes the fair value of securities held-to-maturity in an unrealized loss position as of the dates indicated (in thousands):
 
 
Less than 12 months
 
12 Months or More
 
Total
 
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
December 31, 2018
 
 
 
 
 
 
 
 
 
 
 
 
State, county, and municipal securities

 
$
—

 
$
—

 
$
1,703

 
$
10

 
$
1,703

 
$
10

Mortgage-backed securities
 
—

 
—

 
35,006

 
776

 
35,006

 
776

Total debt securities
 
$
—

 
$
—

 
$
36,709

 
$
786

 
$
36,709

 
$
786

 
 
 
 
 
 
 
 
 
 
 
 
 
December 31, 2017
 
 
 
 
 
 
 
 
 
 
 
 
State, county, and municipal securities

 
$
6,340

 
$
22

 
$
—

 
$
—

 
$
6,340

 
$
22

Mortgage-backed securities
 
13,138

 
95

 
12,090

 
451

 
25,228

 
546

Total debt securities
 
$
19,478

 
$
117

 
$
12,090

 
$
451

 
$
31,568

 
$
568
Sales of Securities Available-For-Sale and Held-To-Maturity Securities
Sales of securities available-for-sale and held-to-maturity securities are summarized in the following table (in thousands):
 
 
December 31, 2018
 
December 31, 2017
Available-for-sale securities
 
 
 
 
Proceeds from sales
 
$
8,965

 
$
16,979

 
 
 
 
 
Gross gains on sales
 
$
239

 
$
449

Gross losses on sales
 
(288
)
 
(109
)
  Net realized (losses) gains on sales
 
$
(49
)
 
$
340

 
 
 
 
 
Held-to-maturity securities
 
 
 
 
Proceeds from sales
 
$
—

 
$
887

 
 
 
 
 
Gross gains on sales
 
$
—

 
$
7

  Net realized gains on sales
 
$
—

 
$
7