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INVESTMENT SECURITIES - Investment Category of Available-for-Sale Securities (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Fair Value |  |
Less than 12 Months | $ 8,569 | $ 42,325
12 Months or More | 128,501 | 109,611
Total | 137,070 | 151,936
Unrealized Loss |  |
Less than 12 Months | 320 | 2,943
12 Months or More | 29,554 | 21,583
Total | 29,874 | 24,526
U.S. government agency obligations |  |
Fair Value |  |
Less than 12 Months | 3,961 | 3,169
12 Months or More | 3,615 | 1,138
Total | 7,576 | 4,307
Unrealized Loss |  |
Less than 12 Months | 0 | 138
12 Months or More | 223 | 95
Total | 223 | 233
Mortgage-backed securities |  |
Fair Value |  |
Less than 12 Months | 6 | 9,654
12 Months or More | 69,725 | 68,907
Total | 69,731 | 78,561
Unrealized Loss |  |
Less than 12 Months | 0 | 896
12 Months or More | 22,991 | 17,952
Total | 22,991 | 18,848
Corporate debt securities |  |
Fair Value |  |
Less than 12 Months | 4,602 | 21,547
12 Months or More | 34,372 | 18,704
Total | 38,974 | 40,251
Unrealized Loss |  |
Less than 12 Months | 320 | 1,688
12 Months or More | 5,964 | 2,697
Total | 6,284 | 4,385
Asset-backed securities |  |
Fair Value |  |
Less than 12 Months | 0 | 7,955
12 Months or More | 20,789 | 20,862
Total | 20,789 | 28,817
Unrealized Loss |  |
Less than 12 Months | 0 | 221
12 Months or More | 376 | 839
Total | $ 376 | $ 1,060

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