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INVESTMENT SECURITIES - Gross Unrealized Losses and Fair Value Aggregated by Investment Category and Length of Time in Continuous Unrealized Loss Position (Details) $ in Thousands | Sep. 30, 2019 USD ($) security | Dec. 31, 2018 USD ($) security
--- | --- | ---
Investment Securities |  |
Less than 12 months Fair Value | $ 11,149 | $ 18,186
Less than 12 months Unrealized Loss | (30) | (340)
12 months or more Fair Value | 23,133 | 50,327
12 months or more Unrealized Loss | (286) | (1,741)
Total Fair Value | 34,282 | 68,513
Total Unrealized Loss | $ (316) | $ (2,081)
Number of securities continuous unrealized loss position more than twelve months | security | 87 | 142
Collateralized mortgage obligations |  |
Investment Securities |  |
Less than 12 months Fair Value | $ 7,043 | $ 1,625
Less than 12 months Unrealized Loss | (18) | (22)
12 months or more Fair Value | 8,039 | 17,546
12 months or more Unrealized Loss | (123) | (640)
Total Fair Value | 15,082 | 19,171
Total Unrealized Loss | (141) | (662)
Agency mortgage-backed securities |  |
Investment Securities |  |
Less than 12 months Fair Value | 1,853 | 3,399
Less than 12 months Unrealized Loss | (4) | (74)
12 months or more Fair Value | 12,723 | 21,417
12 months or more Unrealized Loss | (154) | (840)
Total Fair Value | 14,576 | 24,816
Total Unrealized Loss | (158) | (914)
Municipal securities |  |
Investment Securities |  |
Less than 12 months Fair Value | 2,253 | 13,162
Less than 12 months Unrealized Loss | (8) | (244)
12 months or more Fair Value | 871 | 8,415
12 months or more Unrealized Loss | (8) | (210)
Total Fair Value | 3,124 | 21,577
Total Unrealized Loss | (16) | (454)
U.S. Government agency securities |  |
Investment Securities |  |
12 months or more Fair Value | 500 | 1,959
12 months or more Unrealized Loss |  | (40)
Total Fair Value | 500 | 1,959
Total Unrealized Loss |  | (40)
U.S. Treasury securities |  |
Investment Securities |  |
12 months or more Fair Value | 1,000 | 990
12 months or more Unrealized Loss | (1) | (11)
Total Fair Value | 1,000 | 990
Total Unrealized Loss | $ (1) | $ (11)

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