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SECURITIES (Tables) | 3 Months Ended
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Mar. 31, 2020
SECURITIES |
Summary 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
March 31, 2020 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Mortgage-backed securities: residential | ​ | $ | 280,674 | ​ | $ | 12,766 | ​ | $ | (170) | ​ | $ | 293,270
Mortgage-backed securities: commercial | ​ | ​ | 41,003 | ​ | ​ | 811 | ​ | ​ | 0 | ​ | ​ | 41,814
State and municipal securities | ​ | ​ | 272,205 | ​ | ​ | 17,068 | ​ | ​ | (32) | ​ | ​ | 289,241
Total | ​ | $ | 593,882 | ​ | $ | 30,645 | ​ | $ | (202) | ​ | $ | 624,325
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
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 March 31, 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 | ​ | $ | 3,924 | ​ | $ | 3,946
Due after one year through five years | ​ | ​ | 15,371 | ​ | ​ | 15,741
Due after five years through ten years | ​ | ​ | 27,257 | ​ | ​ | 28,584
Due after ten years | ​ | ​ | 225,653 | ​ | ​ | 240,970
​ | ​ | ​ | 272,205 | ​ | ​ | 289,241
Mortgage-backed securities | ​ | ​ | 321,677 | ​ | ​ | 335,084
Total debt securities | ​ | $ | 593,882 | ​ | $ | 624,325
​
Schedule of Sales of Securities Available For Sale | Securities proceeds, gross gains and gross losses are presented below. ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended March 31,
(dollars in thousands) |  | 2020 |  | 2019
Sales of securities available-for-sale | ​ | ​ | ​ | ​ | ​ | ​
Proceeds | ​ | $ | 0 | ​ | $ | 13,693
Gross gains | ​ | ​ | 0 | ​ | ​ | 70
Gross losses | ​ | ​ | 0 | ​ | ​ | (47)
Number of securities | ​ | ​ | 0 | ​ | ​ | 17
​
Schedule of Available-For-Sale Securities Continuous Unrealized Loss Position | Information regarding securities with unrealized losses as of March 31, 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
March 31, 2020 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Mortgage-backed securities: residential | ​ | $ | 3,021 | ​ | $ | 69 | ​ | $ | 5,134 | ​ | $ | 101 | ​ | $ | 8,155 | ​ | $ | 170
Mortgage-backed securities: commercial | ​ | ​ | 2,214 | ​ | ​ | 0 | ​ | ​ | 0 | ​ | ​ | 0 | ​ | ​ | 2,214 | ​ | ​ | 0
State and municipal securities | ​ | ​ | 4,509 | ​ | ​ | 32 | ​ | ​ | 0 | ​ | ​ | 0 | ​ | ​ | 4,509 | ​ | ​ | 32
Total temporarily impaired | ​ | $ | 9,744 | ​ | $ | 101 | ​ | $ | 5,134 | ​ | $ | 101 | ​ | $ | 14,878 | ​ | $ | 202
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
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
​
Quantitative Disclosure of Available-For-Sale Securities | The total number of securities with unrealized losses as of March 31, 2020 and December 31, 2019 is presented below. ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Less than | ​ | 12 months | ​ | ​
​ |  | 12 months |  | or more |  | Total
March 31, 2020 | ​ | ​ | ​ | ​ | ​ | ​
Mortgage-backed securities: residential | ​ | 1 | ​ | 2 | ​ | 3
Mortgage-backed securities: commercial | ​ | 1 | ​ | 0 | ​ | 1
State and municipal securities | ​ | 4 | ​ | 0 | ​ | 4
Total temporarily impaired | ​ | 6 | ​ | 2 | ​ | 8
​ | ​ | ​ | ​ | ​ | ​ | ​
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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