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SECURITIES AVAILABLE FOR SALE - Summary of Securities with Unrealized Losses (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Gross Unrealized Losses |  |
Less Than Twelve Months | $ 459 | $ 517
Over Twelve Months | 7,526 | 13,658
Total | 7,985 | 14,175
Fair Value |  |
Less Than Twelve Months | 46,545 | 50,873
Over Twelve Months | 357,586 | 428,272
Total | 404,131 | 479,145
US Government-sponsored enterprises |  |
Gross Unrealized Losses |  |
Less Than Twelve Months | 15 | 155
Over Twelve Months | 5,395 | 9,289
Total | 5,410 | 9,444
Fair Value |  |
Less Than Twelve Months | 5,958 | 19,367
Over Twelve Months | 259,984 | 297,569
Total | 265,942 | 316,936
US Government agency |  |
Gross Unrealized Losses |  |
Less Than Twelve Months | 17 | 16
Over Twelve Months | 1,202 | 1,919
Total | 1,219 | 1,935
Fair Value |  |
Less Than Twelve Months | 6,784 | 2,570
Over Twelve Months | 60,359 | 68,266
Total | 67,143 | 70,836
Private label |  |
Gross Unrealized Losses |  |
Less Than Twelve Months | 145 | 79
Over Twelve Months | 5 | 5
Total | 150 | 84
Fair Value |  |
Less Than Twelve Months | 19,905 | 10,393
Over Twelve Months | 45 | 47
Total | 19,950 | 10,440
Obligations of states and political subdivisions thereof |  |
Gross Unrealized Losses |  |
Less Than Twelve Months | 0 | 43
Over Twelve Months | 824 | 2,033
Total | 824 | 2,076
Fair Value |  |
Less Than Twelve Months | 0 | 6,784
Over Twelve Months | 32,301 | 47,930
Total | 32,301 | 54,714
Corporate bonds |  |
Gross Unrealized Losses |  |
Less Than Twelve Months | 282 | 224
Over Twelve Months | 100 | 412
Total | 382 | 636
Fair Value |  |
Less Than Twelve Months | 13,898 | 11,759
Over Twelve Months | 4,897 | 14,460
Total | $ 18,795 | $ 26,219

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