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Bank segment - Principal balance of impaired loans (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Dec. 31, 2017
Recorded investment: |  |  |
With no related allowance recorded | $ 13,999 |  | $ 14,072
With an allowance recorded | 20,632 |  | 19,321
Recorded investment | 34,631 |  | 33,393
Unpaid principal balance: |  |  |
With no related allowance recorded | 16,034 |  | 16,041
With an allowance recorded | 20,879 |  | 19,574
Unpaid principal balance | 36,913 |  | 35,615
Related Allowance | 2,706 |  | 2,730
Average recorded investment: |  |  |
With no related allowance recorded | 13,728 | $ 17,643 |
With an allowance recorded | 19,970 | 25,284 |
Average recorded investment | 33,698 | 42,927 |
Interest income recognized: |  |  |
With no related allowance recorded | 127 | 130 |
With an allowance recorded | 224 | 620 |
Interest income recognized | 351 | 750 |
Residential 1-4 family |  |  |
Recorded investment: |  |  |
With no related allowance recorded | 8,673 |  | 9,097
With an allowance recorded | 9,055 |  | 9,187
Recorded investment | 17,728 |  | 18,284
Unpaid principal balance: |  |  |
With no related allowance recorded | 9,205 |  | 9,644
With an allowance recorded | 9,258 |  | 9,390
Unpaid principal balance | 18,463 |  | 19,034
Related Allowance | 1,207 |  | 1,248
Average recorded investment: |  |  |
With no related allowance recorded | 8,496 | 9,555 |
With an allowance recorded | 9,129 | 10,048 |
Average recorded investment | 17,625 | 19,603 |
Interest income recognized: |  |  |
With no related allowance recorded | 107 | 84 |
With an allowance recorded | 93 | 119 |
Interest income recognized | 200 | 203 |
Commercial real estate |  |  |
Recorded investment: |  |  |
With no related allowance recorded | 0 |  | 0
With an allowance recorded | 1,004 |  | 1,016
Recorded investment | 1,004 |  | 1,016
Unpaid principal balance: |  |  |
With no related allowance recorded | 0 |  | 0
With an allowance recorded | 1,004 |  | 1,016
Unpaid principal balance | 1,004 |  | 1,016
Related Allowance | 68 |  | 65
Average recorded investment: |  |  |
With no related allowance recorded | 0 | 220 |
With an allowance recorded | 1,008 | 1,300 |
Average recorded investment | 1,008 | 1,520 |
Interest income recognized: |  |  |
With no related allowance recorded | 0 | 0 |
With an allowance recorded | 11 | 14 |
Interest income recognized | 11 | 14 |
Home equity line of credit |  |  |
Recorded investment: |  |  |
With no related allowance recorded | 1,690 |  | 1,496
With an allowance recorded | 8,575 |  | 6,692
Recorded investment | 10,265 |  | 8,188
Unpaid principal balance: |  |  |
With no related allowance recorded | 1,982 |  | 1,789
With an allowance recorded | 8,619 |  | 6,736
Unpaid principal balance | 10,601 |  | 8,525
Related Allowance | 892 |  | 647
Average recorded investment: |  |  |
With no related allowance recorded | 1,700 | 2,004 |
With an allowance recorded | 7,741 | 4,562 |
Average recorded investment | 9,441 | 6,566 |
Interest income recognized: |  |  |
With no related allowance recorded | 5 | 14 |
With an allowance recorded | 81 | 49 |
Interest income recognized | 86 | 63 |
Residential land |  |  |
Recorded investment: |  |  |
With no related allowance recorded | 1,130 |  | 1,143
With an allowance recorded | 54 |  | 122
Recorded investment | 1,184 |  | 1,265
Unpaid principal balance: |  |  |
With no related allowance recorded | 1,429 |  | 1,434
With an allowance recorded | 54 |  | 122
Unpaid principal balance | 1,483 |  | 1,556
Related Allowance | 17 |  | 47
Average recorded investment: |  |  |
With no related allowance recorded | 1,168 | 957 |
With an allowance recorded | 77 | 2,076 |
Average recorded investment | 1,245 | 3,033 |
Interest income recognized: |  |  |
With no related allowance recorded | 5 | 26 |
With an allowance recorded | 2 | 37 |
Interest income recognized | 7 | 63 |
Commercial construction |  |  |
Recorded investment: |  |  |
With no related allowance recorded | 0 |  | 0
With an allowance recorded | 0 |  | 0
Recorded investment | 0 |  | 0
Unpaid principal balance: |  |  |
With no related allowance recorded | 0 |  | 0
With an allowance recorded | 0 |  | 0
Unpaid principal balance | 0 |  | 0
Related Allowance | 0 |  | 0
Average recorded investment: |  |  |
With no related allowance recorded | 0 | 0 |
With an allowance recorded | 0 | 0 |
Average recorded investment | 0 | 0 |
Interest income recognized: |  |  |
With no related allowance recorded | 0 | 0 |
With an allowance recorded | 0 | 0 |
Interest income recognized | 0 | 0 |
Residential construction |  |  |
Recorded investment: |  |  |
With no related allowance recorded | 0 |  | 0
With an allowance recorded | 0 |  | 0
Recorded investment | 0 |  | 0
Unpaid principal balance: |  |  |
With no related allowance recorded | 0 |  | 0
With an allowance recorded | 0 |  | 0
Unpaid principal balance | 0 |  | 0
Related Allowance | 0 |  | 0
Average recorded investment: |  |  |
With no related allowance recorded | 0 | 0 |
With an allowance recorded | 0 | 0 |
Average recorded investment | 0 | 0 |
Interest income recognized: |  |  |
With no related allowance recorded | 0 | 0 |
With an allowance recorded | 0 | 0 |
Interest income recognized | 0 | 0 |
Commercial loans |  |  |
Recorded investment: |  |  |
With no related allowance recorded | 2,499 |  | 2,328
With an allowance recorded | 1,886 |  | 2,246
Recorded investment | 4,385 |  | 4,574
Unpaid principal balance: |  |  |
With no related allowance recorded | 3,411 |  | 3,166
With an allowance recorded | 1,886 |  | 2,252
Unpaid principal balance | 5,297 |  | 5,418
Related Allowance | 519 |  | 694
Average recorded investment: |  |  |
With no related allowance recorded | 2,357 | 4,907 |
With an allowance recorded | 1,957 | 7,268 |
Average recorded investment | 4,314 | 12,175 |
Interest income recognized: |  |  |
With no related allowance recorded | 10 | 6 |
With an allowance recorded | 36 | 401 |
Interest income recognized | 46 | 407 |
Consumer loans |  |  |
Recorded investment: |  |  |
With no related allowance recorded | 7 |  | 8
With an allowance recorded | 58 |  | 58
Recorded investment | 65 |  | 66
Unpaid principal balance: |  |  |
With no related allowance recorded | 7 |  | 8
With an allowance recorded | 58 |  | 58
Unpaid principal balance | 65 |  | 66
Related Allowance | 3 |  | $ 29
Average recorded investment: |  |  |
With no related allowance recorded | 7 | 0 |
With an allowance recorded | 58 | 30 |
Average recorded investment | 65 | 30 |
Interest income recognized: |  |  |
With no related allowance recorded | 0 | 0 |
With an allowance recorded | 1 | 0 |
Interest income recognized | $ 1 | $ 0 |

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