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Securities (Tables) | 12 Months Ended
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Dec. 31, 2018
Securities |
Schedule of amortized cost and fair value of the securities portfolio and corresponding amounts of gross unrealized gains and losses recognized in accumulated other comprehensive loss |
|  |  |  |  | Gross |  | Gross |  |  |
|  | Amortized |  | Unrealized |  | Unrealized |  | Fair
December 31, 2018 |  | Cost |  | Gains |  | Losses |  | Value
Securities available-for-sale |  |  |  |  |  |  |  |
U.S. Treasuries |  | $ | 4,006 |  | $ | - |  | $ | (83) |  | $ | 3,923
U.S. government agencies |  |  | 11,112 |  |  | - |  |  | (161) |  |  | 10,951
U.S. government agencies mortgage-backed |  |  | 14,407 |  |  | 45 |  |  | (377) |  |  | 14,075
States and political subdivisions |  |  | 277,112 |  |  | 1,916 |  |  | (4,961) |  |  | 274,067
Collateralized mortgage obligations |  |  | 66,494 |  |  | 79 |  |  | (2,144) |  |  | 64,429
Asset-backed securities |  |  | 108,574 |  |  | 1,165 |  |  | (225) |  |  | 109,514
Collateralized loan obligations |  |  | 65,162 |  |  | 24 |  |  | (897) |  |  | 64,289
Total securities available-for-sale |  | $ | 546,867 |  | $ | 3,229 |  | $ | (8,848) |  | $ | 541,248
|  |  |  |  | Gross |  | Gross |  |  |
|  | Amortized |  | Unrealized |  | Unrealized |  | Fair
December 31, 2017 |  | Cost |  | Gains |  | Losses |  | Value
Securities available-for-sale |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury |  | $ | 4,002 |  | $ | - |  | $ | (55) |  | $ | 3,947
U.S. government agencies |  |  | 13,062 |  |  | 8 |  |  | (9) |  |  | 13,061
U.S. government agencies mortgage-backed |  |  | 12,372 |  |  | 7 |  |  | (165) |  |  | 12,214
States and political subdivisions |  |  | 272,240 |  |  | 7,116 |  |  | (1,264) |  |  | 278,092
Corporate bonds |  |  | 823 |  |  | 21 |  |  | (11) |  |  | 833
Collateralized mortgage obligations |  |  | 66,892 |  |  | 202 |  |  | (1,155) |  |  | 65,939
Asset-backed securities |  |  | 113,983 |  |  | 862 |  |  | (1,913) |  |  | 112,932
Collateralized loan obligations |  |  | 54,271 |  |  | 251 |  |  | (101) |  |  | 54,421
Total securities available-for-sale |  | $ | 537,645 |  | $ | 8,467 |  | $ | (4,673) |  | $ | 541,439
Schedule of fair value, amortized cost and weighted average yield of debt securities by contractual maturity along with securities not due at a single maturity date, primarily mortgage-backed securities (MBS), asset-backed securities, and collateralized loan obligations |
|  |  |  |  | Weighted |  |  |  |  |
|  | Amortized |  | Average |  |  | Fair |
Securities available-for-sale |  | Cost |  | Yield |  |  | Value |
Due in one year or less |  | $ | 494 |  | 0.56 | % |  | $ | 495 |
Due after one year through five years |  |  | 6,910 |  | 2.00 |  |  |  | 6,861 |
Due after five years through ten years |  |  | 6,202 |  | 3.25 |  |  |  | 6,275 |
Due after ten years |  |  | 278,624 |  | 3.02 |  |  |  | 275,310 |
|  |  | 292,230 |  | 2.99 |  |  |  | 288,941 |
Mortgage-backed and collateralized mortgage obligations |  |  | 80,901 |  | 3.24 |  |  |  | 78,504 |
Asset-backed securities |  |  | 108,574 |  | 3.65 |  |  |  | 109,514 |
Collateralized loan obligations |  |  | 65,162 |  | 5.05 |  |  |  | 64,289 |
Total securities available-for-sale |  | $ | 546,867 |  | 3.41 | % |  | $ | 541,248 |
Schedule of amortized cost and fair value of securities that exceed 10% of stockholders equity |
|  | December 31, 2018
|  | Amortized |  | Fair
Issuer |  | Cost |  | Value
GCO Education Loan Funding Corp |  | $ | 27,739 |  | $ | 27,763
Towd Point Mortgage Trust |  |  | 34,308 |  |  | 33,318
Student Loan Marketing Association (“SLMA”) |  |  | 25,808 |  |  | 26,119
Schedule of securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position |
|  | Less than 12 months |  | 12 months or more |  |  |  |  |  |  |  |
December 31, 2018 |  | in an unrealized loss position |  | in an unrealized loss position |  | Total
|  | Number of |  | Unrealized |  | Fair |  | Number of |  | Unrealized |  | Fair |  | Number of |  | Unrealized |  | Fair
Securities available-for-sale |  | Securities |  | Losses |  | Value |  | Securities |  | Losses |  | Value |  | Securities |  | Losses |  | Value
U.S. Treasuries |  | - |  | $ | - |  | $ | - |  | 1 |  | $ | 83 |  | $ | 3,923 |  | 1 |  | $ | 83 |  | $ | 3,923
U.S. government agencies |  | 3 |  |  | 100 |  |  | 7,385 |  | 1 |  |  | 61 |  |  | 3,566 |  | 4 |  |  | 161 |  |  | 10,951
U.S. government agencies mortgage-backed |  | - |  |  | - |  |  | - |  | 11 |  |  | 377 |  |  | 11,439 |  | 11 |  |  | 377 |  |  | 11,439
States and political subdivisions |  | 4 |  |  | 126 |  |  | 17,713 |  | 33 |  |  | 4,835 |  |  | 110,326 |  | 37 |  |  | 4,961 |  |  | 128,039
Collateralized mortgage obligations |  | 2 |  |  | 309 |  |  | 15,211 |  | 10 |  |  | 1,835 |  |  | 43,687 |  | 12 |  |  | 2,144 |  |  | 58,898
Asset-backed securities |  | - |  |  | - |  |  | - |  | 4 |  |  | 225 |  |  | 16,473 |  | 4 |  |  | 225 |  |  | 16,473
Collateralized loan obligations |  | 7 |  |  | 721 |  |  | 46,547 |  | 1 |  |  | 176 |  |  | 7,824 |  | 8 |  |  | 897 |  |  | 54,371
Total securities available-for-sale |  | 16 |  | $ | 1,256 |  | $ | 86,856 |  | 61 |  | $ | 7,592 |  | $ | 197,238 |  | 77 |  | $ | 8,848 |  | $ | 284,094
|  | Less than 12 months |  | 12 months or more |  |  |  |  |  |  |  |
December 31, 2017 |  | in an unrealized loss position |  | in an unrealized loss position |  | Total
|  | Number of |  | Unrealized |  |  | Fair |  | Number of |  | Unrealized |  |  | Fair |  | Number of |  | Unrealized |  |  | Fair
Securities available-for-sale |  | Securities |  | Losses |  |  | Value |  | Securities |  | Losses |  |  | Value |  | Securities |  | Losses |  |  | Value
U.S. Treasuries |  | 1 |  | $ | 55 |  | $ | 3,947 |  | - |  | $ | - |  | $ | - |  | 1 |  | $ | 55 |  | $ | 3,947
U.S. government agencies |  | 2 |  |  | 9 |  |  | 6,550 |  | - |  |  | - |  |  | - |  | 2 |  |  | 9 |  |  | 6,550
U.S. government agencies mortgage-backed |  | 4 |  |  | 24 |  |  | 5,501 |  | 5 |  |  | 141 |  |  | 4,843 |  | 9 |  |  | 165 |  |  | 10,344
States and political subdivisions |  | 13 |  |  | 1,237 |  |  | 45,985 |  | 1 |  |  | 27 |  |  | 1,512 |  | 14 |  |  | 1,264 |  |  | 47,497
Corporate bonds |  | - |  |  | - |  |  | - |  | 1 |  |  | 11 |  |  | 332 |  | 1 |  |  | 11 |  |  | 332
Collateralized mortgage obligations |  | 3 |  |  | 31 |  |  | 11,534 |  | 8 |  |  | 1,124 |  |  | 40,219 |  | 11 |  |  | 1,155 |  |  | 51,753
Asset-backed securities |  | - |  |  | - |  |  | - |  | 7 |  |  | 1,913 |  |  | 61,745 |  | 7 |  |  | 1,913 |  |  | 61,745
Collateralized loan obligations |  | 3 |  |  | 101 |  |  | 29,313 |  | - |  |  | - |  |  | - |  | 3 |  |  | 101 |  |  | 29,313
Total securities available-for-sale |  | 26 |  | $ | 1,457 |  | $ | 102,830 |  | 22 |  | $ | 3,216 |  | $ | 108,651 |  | 48 |  | $ | 4,673 |  | $ | 211,481
Schedule of proceeds from sale and gross realized gains and losses on sale of securities |
|  |  | Years ended December 31, |
Securities available-for-sale |  |  | 2018 |  | 2017 |  | 2016 |
Proceeds from sales of securities |  |  | $ | 94,663 |  | $ | 232,462 |  | $ | 306,400 |
Gross realized gains on securities |  |  |  | 369 |  |  | 2,367 |  |  | 1,675 |
Gross realized losses on securities |  |  |  | (9) |  |  | (1,893) |  |  | (3,888) |
Securities realized gains (losses), net |  |  | $ | 360 |  | $ | 474 |  | $ | (2,213) |
Income tax (expense) benefit on net realized gains (losses) |  |  | $ | (100) |  | $ | (198) |  | $ | 882 |
Effective tax rate applied |  |  |  | 27.8 | % |  | 41.8 | % |  | 39.9 | %

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