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3. Loans (Details 3) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Dec. 31, 2019
Impaired loans |  |  |
Unpaid contractual principal balance | $ 24,028 |  | $ 22,659
Recorded investment with no allowance | 1,521 |  | 495
Recorded investment with allowance | 21,235 |  | 20,848
Recorded investment in impaired loans | 22,756 |  | 21,343
Related allowance | 1,026 |  | 996
Average outstanding impaired loans | 22,049 |  | 21,895
Interest income recognized | 329 | $ 342 | 1,344
Construction and land development |  |  |
Impaired loans |  |  |
Unpaid contractual principal balance | 180 |  | 183
Recorded investment with no allowance | 0 |  | 0
Recorded investment with allowance | 180 |  | 183
Recorded investment in impaired loans | 180 |  | 183
Related allowance | 8 |  | 7
Average outstanding impaired loans | 182 |  | 231
Interest income recognized | 3 |  | 12
Single-family residential |  |  |
Impaired loans |  |  |
Unpaid contractual principal balance | 5,027 |  | 5,152
Recorded investment with no allowance | 397 |  | 403
Recorded investment with allowance | 4,189 |  | 4,243
Recorded investment in impaired loans | 4,586 |  | 4,646
Related allowance | 36 |  | 36
Average outstanding impaired loans | 4,615 |  | 4,678
Interest income recognized | 58 |  | 269
Single-family residential - Banco de la Gente non-tradtional |  |  |
Impaired loans |  |  |
Unpaid contractual principal balance | 14,767 |  | 15,165
Recorded investment with no allowance | 1,034 |  | 0
Recorded investment with allowance | 12,930 |  | 14,371
Recorded investment in impaired loans | 13,964 |  | 14,371
Related allowance | 926 |  | 944
Average outstanding impaired loans | 14,168 |  | 14,925
Interest income recognized | 228 |  | 956
Commercial |  |  |
Impaired loans |  |  |
Unpaid contractual principal balance | 3,260 |  | 1,879
Recorded investment with no allowance | 0 |  | 0
Recorded investment with allowance | 3,243 |  | 1,871
Recorded investment in impaired loans | 3,243 |  | 1,871
Related allowance | 19 |  | 7
Average outstanding impaired loans | 2,557 |  | 1,822
Interest income recognized | 29 |  | 91
Multifamily and Farmland |  |  |
Impaired loans |  |  |
Unpaid contractual principal balance | 0 |  | 0
Recorded investment with no allowance | 0 |  | 0
Recorded investment with allowance | 0 |  | 0
Recorded investment in impaired loans | 0 |  | 0
Related allowance | 0 |  | 0
Average outstanding impaired loans | 0 |  | 0
Interest income recognized | 0 |  | 0
Total real estate loans |  |  |
Impaired loans |  |  |
Unpaid contractual principal balance | 23,234 |  | 22,379
Recorded investment with no allowance | 1,431 |  | 403
Recorded investment with allowance | 20,542 |  | 20,668
Recorded investment in impaired loans | 21,973 |  | 21,071
Related allowance | 989 |  | 994
Average outstanding impaired loans | 21,522 |  | 21,656
Interest income recognized | 318 |  | 1,328
Commercial loans (not secured by real estate) |  |  |
Impaired loans |  |  |
Unpaid contractual principal balance | 702 |  | 180
Recorded investment with no allowance | 90 |  | 92
Recorded investment with allowance | 606 |  | 84
Recorded investment in impaired loans | 696 |  | 176
Related allowance | 35 |  | 0
Average outstanding impaired loans | 436 |  | 134
Interest income recognized | 9 |  | 9
Consumer loans (not secured by real estate) |  |  |
Impaired loans |  |  |
Unpaid contractual principal balance | 92 |  | 100
Recorded investment with no allowance | 0 |  | 0
Recorded investment with allowance | 87 |  | 96
Recorded investment in impaired loans | 87 |  | 96
Related allowance | 2 |  | 2
Average outstanding impaired loans | 91 |  | 105
Interest income recognized | $ 2 |  | $ 7

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