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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Summary of Loan Portfolio by Type of Loan (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019 | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | --- | --- | ---
Loans held for investment: |  |  |  |
Total loans | $ 1,718,353 | $ 1,706,395 |  |
Deferred loan costs, net | 456 | 601 |  |
Allowance for credit losses | (21,948) | (16,202) | $ (15,190) | $ (14,651)
Total net loans | 1,696,861 | 1,690,794 |  |
Commercial and industrial |  |  |  |
Loans held for investment: |  |  |  |
Total loans | 297,163 | 279,583 |  |
Allowance for credit losses | (2,924) | (2,056) | (1,963) | (1,751)
Construction and development |  |  |  |
Loans held for investment: |  |  |  |
Total loans | 263,973 | 280,498 |  |
Allowance for credit losses | (2,578) | (2,378) | (2,001) | (1,920)
Commercial real estate |  |  |  |
Loans held for investment: |  |  |  |
Total loans | 584,883 | 567,360 |  |
Allowance for credit losses | (9,761) | (6,853) | (6,294) | (6,025)
Farmland |  |  |  |
Loans held for investment: |  |  |  |
Total loans | 78,635 | 57,476 |  |
Allowance for credit losses | (792) | (570) | (659) | (643)
1-4 family residential |  |  |  |
Loans held for investment: |  |  |  |
Total loans | 400,605 | 412,166 |  |
Allowance for credit losses | (4,156) | (3,125) | (2,870) | (2,868)
Multi-family residential |  |  |  |
Loans held for investment: |  |  |  |
Total loans | 20,430 | 37,379 |  |
Allowance for credit losses | (189) | (409) | (575) | (631)
Consumer |  |  |  |
Loans held for investment: |  |  |  |
Total loans | 52,996 | 53,245 |  |
Allowance for credit losses | (693) | (602) | (617) | (565)
Agricultural |  |  |  |
Loans held for investment: |  |  |  |
Total loans | 19,314 | 18,359 |  |
Allowance for credit losses | (281) | (197) | (203) | (238)
Overdrafts |  |  |  |
Loans held for investment: |  |  |  |
Total loans | 354 | 329 |  |
Allowance for credit losses | $ (3) | $ (12) | $ (8) | $ (10)

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