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SECURITIES (Tables) | 9 Months Ended
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Sep. 30, 2020
SECURITIES |
Schedule of Available-For-Sale Securities | Information related to the fair value and amortized cost of securities available-for-sale and the related gross unrealized gains and losses recognized in accumulated other comprehensive income is provided in the tables below. ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Gross | ​ | Gross | ​ | ​ | ​
​ | ​ | Amortized | ​ | Unrealized | ​ | Unrealized | ​ | Fair
(dollars in thousands) |  | Cost |  | Gain |  | Losses |  | Value
September 30, 2020 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. government sponsored agencies |  | $ | 10,000 |  | $ | 26 |  | $ | 0 |  | $ | 10,026
Mortgage-backed securities: residential | ​ | ​ | 238,062 | ​ | ​ | 10,232 | ​ | ​ | (28) | ​ | ​ | 248,266
Mortgage-backed securities: commercial | ​ |  | 38,026 | ​ | ​ | 1,135 | ​ | ​ | 0 | ​ | ​ | 39,161
State and municipal securities | ​ |  | 324,237 | ​ | ​ | 22,533 | ​ | ​ | (189) | ​ | ​ | 346,581
Total | ​ | $ | 610,325 | ​ | $ | 33,926 | ​ | $ | (217) | ​ | $ | 644,034
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
December 31, 2019 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Mortgage-backed securities: residential | ​ | $ | 283,817 | ​ | $ | 4,751 | ​ | $ | (387) | ​ | $ | 288,181
Mortgage-backed securities: commercial | ​ |  | 36,712 | ​ | ​ | 262 | ​ | ​ | (2) | ​ | ​ | 36,972
State and municipal securities | ​ |  | 270,480 | ​ | ​ | 12,828 | ​ | ​ | (228) | ​ | ​ | 283,080
Total | ​ | $ | 591,009 | ​ | $ | 17,841 | ​ | $ | (617) | ​ | $ | 608,233
​
Schedule of Available-For-Sale Securities By Maturity | Information regarding the fair value and amortized cost of available-for-sale debt securities by maturity as of September 30, 2020 is presented below. Maturity information is based on contractual maturity for all securities other than mortgage-backed securities. Actual maturities of securities may differ from contractual maturities because borrowers may have the right to prepay the obligation without a prepayment penalty. ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Amortized | ​ | Fair
(dollars in thousands) |  | Cost |  | Value
Due in one year or less | ​ | $ | 2,436 | ​ | $ | 2,454
Due after one year through five years | ​ |  | 14,118 | ​ | ​ | 14,541
Due after five years through ten years | ​ |  | 29,681 | ​ | ​ | 31,773
Due after ten years | ​ |  | 288,002 | ​ | ​ | 307,839
​ | ​ |  | 334,237 | ​ | ​ | 356,607
Mortgage-backed securities | ​ |  | 276,088 | ​ | ​ | 287,427
Total debt securities | ​ | $ | 610,325 | ​ | $ | 644,034
​
Schedule of Sales of Securities Available For Sale | Securities proceeds, gross gains and gross losses are presented below. ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three months ended September 30, | ​ | Nine months ended September 30, |
(dollars in thousands) |  | 2020 |  | 2019 |  | 2020 |  | 2019 |
Sales of securities available-for-sale | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Proceeds | ​ | $ | 5,265 | ​ | $ | 12,725 | ​ | $ | 6,413 | ​ | $ | 38,544 | ​
Gross gains | ​ |  | 314 | ​ | ​ | 13 | ​ | ​ | 363 | ​ | ​ | 151 | ​
Gross losses | ​ |  | 0 | ​ | ​ | (7) | ​ | ​ | 0 | ​ | ​ | (57) | ​
Number of securities | ​ |  | 12 | ​ | ​ | 6 | ​ | ​ | 15 | ​ | ​ | 31 | ​
​
Schedule of Available-For-Sale Securities Continuous Unrealized Loss Position | Information regarding securities with unrealized losses as of September 30, 2020 and December 31, 2019 is presented below. The tables divide the securities between those with unrealized losses for less than twelve months and those with unrealized losses for twelve months or more. ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Less than 12 months | ​ | 12 months or more | ​ | Total
​ | ​ | Fair | ​ | Unrealized | ​ | Fair | ​ | Unrealized | ​ | Fair | ​ | Unrealized
(dollars in thousands) |  | Value |  | Losses |  | Value |  | Losses |  | Value |  | Losses
September 30, 2020 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Mortgage-backed securities: residential | ​ | $ | 0 | ​ | $ | 0 | ​ | $ | 4,135 | ​ | $ | 28 | ​ | $ | 4,135 | ​ | $ | 28
Mortgage-backed securities: commercial | ​ |  | 7 | ​ | ​ | 0 | ​ | ​ | 0 | ​ | ​ | 0 | ​ | ​ | 7 | ​ | ​ | 0
State and municipal securities | ​ |  | 21,135 | ​ | ​ | 189 | ​ | ​ | 0 | ​ | ​ | 0 | ​ | ​ | 21,135 | ​ | ​ | 189
Total temporarily impaired | ​ | $ | 21,142 | ​ | $ | 189 | ​ | $ | 4,135 | ​ | $ | 28 | ​ | $ | 25,277 | ​ | $ | 217
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
December 31, 2019 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Mortgage-backed securities: residential | ​ | $ | 23,436 | ​ | $ | 112 | ​ | $ | 14,174 | ​ | $ | 275 | ​ | $ | 37,610 | ​ | $ | 387
Mortgage-backed securities: commercial | ​ |  | 4,591 | ​ | ​ | 2 | ​ | ​ | 0 | ​ | ​ | 0 | ​ | ​ | 4,591 | ​ | ​ | 2
State and municipal securities | ​ |  | 14,188 | ​ | ​ | 228 | ​ | ​ | 0 | ​ | ​ | 0 | ​ | ​ | 14,188 | ​ | ​ | 228
Total temporarily impaired | ​ | $ | 42,215 | ​ | $ | 342 | ​ | $ | 14,174 | ​ | $ | 275 | ​ | $ | 56,389 | ​ | $ | 617
​
Schedule of Quantitative Disclosure of Available-For-Sale Securities | The total number of securities with unrealized losses as of September 30, 2020 and December 31, 2019 is presented below. ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Less than | ​ | 12 months | ​ | ​
​ |  | 12 months |  | or more |  | Total
September 30, 2020 | ​ | ​ | ​ | ​ | ​ | ​
Mortgage-backed securities: residential |  | 0 | ​ | 2 | ​ | 2
Mortgage-backed securities: commercial |  | 1 | ​ | 0 | ​ | 1
State and municipal securities |  | 17 | ​ | 0 | ​ | 17
Total temporarily impaired |  | 18 | ​ | 2 | ​ | 20
​ | ​ | ​ | ​ | ​ | ​ | ​
December 31, 2019 | ​ | ​ | ​ | ​ | ​ | ​
Mortgage-backed securities: residential |  | 7 | ​ | 6 | ​ | 13
Mortgage-backed securities: commercial |  | 1 | ​ | 0 | ​ | 1
State and municipal securities |  | 11 | ​ | 0 | ​ | 11
Total temporarily impaired |  | 19 | ​ | 6 | ​ | 25
​

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