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Bank subsidiary (Details 11) (Class of financing receivables, USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2013 | Sep. 30, 2013 | Dec. 31, 2012
Recorded investment: |  |  |
With no related allowance recorded | $ 22,708 | $ 22,708 | $ 30,120
With an allowance recorded | 34,198 | 34,198 | 34,641
Recorded investment | 56,906 | 56,906 | 64,761
Unpaid principal balance: |  |  |
With no related allowance recorded | 29,545 | 29,545 | 42,189
With an allowance recorded | 35,909 | 35,909 | 35,919
Unpaid principal balance | 65,454 | 65,454 | 78,108
Related Allowance | 6,095 | 6,095 | 6,799
Average recorded investment: |  |  |
With no related allowance recorded | 21,359 | 25,994 | 71,308
With an allowance recorded | 33,812 | 35,297 | 21,382
Average recorded investment | 55,171 | 61,291 | 92,690
Interest income recognized: |  |  |
With no related allowance recorded | 285 | 737 | 2,703
With an allowance recorded | 252 | 786 | 848
Interest income recognized | 537 | 1,523 | 3,551
Residential 1-4 family |  |  |
Recorded investment: |  |  |
With no related allowance recorded | 10,121 | 10,121 | 14,633
With an allowance recorded | 7,147 | 7,147 | 4,803
Recorded investment | 17,268 | 17,268 | 19,436
Unpaid principal balance: |  |  |
With no related allowance recorded | 13,122 | 13,122 | 20,247
With an allowance recorded | 7,167 | 7,167 | 4,803
Unpaid principal balance | 20,289 | 20,289 | 25,050
Related Allowance | 943 | 943 | 384
Average recorded investment: |  |  |
With no related allowance recorded | 9,777 | 12,304 | 16,688
With an allowance recorded | 7,155 | 6,411 | 4,204
Average recorded investment | 16,932 | 18,715 | 20,892
Interest income recognized: |  |  |
With no related allowance recorded | 62 | 294 | 294
With an allowance recorded | 83 | 259 | 250
Interest income recognized | 145 | 553 | 544
Commercial real estate |  |  |
Recorded investment: |  |  |
With no related allowance recorded |  |  | 2,929
With an allowance recorded | 4,484 | 4,484 | 3,821
Recorded investment | 4,484 | 4,484 | 6,750
Unpaid principal balance: |  |  |
With no related allowance recorded |  |  | 2,929
With an allowance recorded | 4,536 | 4,536 | 3,840
Unpaid principal balance | 4,536 | 4,536 | 6,769
Related Allowance | 888 | 888 | 535
Average recorded investment: |  |  |
With no related allowance recorded |  | 1,069 | 7,771
With an allowance recorded | 4,028 | 6,157 | 1,295
Average recorded investment | 4,028 | 7,226 | 9,066
Interest income recognized: |  |  |
With no related allowance recorded |  |  | 237
With an allowance recorded | 0 | 151 |
Interest income recognized | 0 | 151 | 237
Home equity line of credit |  |  |
Recorded investment: |  |  |
With no related allowance recorded | 523 | 523 | 581
Recorded investment | 523 | 523 | 581
Unpaid principal balance: |  |  |
With no related allowance recorded | 1,068 | 1,068 | 1,374
Unpaid principal balance | 1,068 | 1,068 | 1,374
Average recorded investment: |  |  |
With no related allowance recorded | 526 | 606 | 632
With an allowance recorded |  |  | 26
Average recorded investment | 526 | 606 | 658
Interest income recognized: |  |  |
With no related allowance recorded |  |  | 1
Interest income recognized |  |  | 1
Residential land |  |  |
Recorded investment: |  |  |
With no related allowance recorded | 5,734 | 5,734 | 7,691
With an allowance recorded | 6,101 | 6,101 | 9,984
Recorded investment | 11,835 | 11,835 | 17,675
Unpaid principal balance: |  |  |
With no related allowance recorded | 6,712 | 6,712 | 10,624
With an allowance recorded | 6,228 | 6,228 | 10,364
Unpaid principal balance | 12,940 | 12,940 | 20,988
Related Allowance | 1,585 | 1,585 | 3,221
Average recorded investment: |  |  |
With no related allowance recorded | 6,095 | 7,477 | 21,589
With an allowance recorded | 6,105 | 7,123 | 7,428
Average recorded investment | 12,200 | 14,600 | 29,017
Interest income recognized: |  |  |
With no related allowance recorded | 216 | 435 | 1,185
With an allowance recorded | 102 | 304 | 575
Interest income recognized | 318 | 739 | 1,760
Commercial loans |  |  |
Recorded investment: |  |  |
With no related allowance recorded | 6,311 | 6,311 | 4,265
With an allowance recorded | 16,466 | 16,466 | 16,033
Recorded investment | 22,777 | 22,777 | 20,298
Unpaid principal balance: |  |  |
With no related allowance recorded | 8,624 | 8,624 | 6,994
With an allowance recorded | 17,978 | 17,978 | 16,912
Unpaid principal balance | 26,602 | 26,602 | 23,906
Related Allowance | 2,679 | 2,679 | 2,659
Average recorded investment: |  |  |
With no related allowance recorded | 4,941 | 4,518 | 24,605
With an allowance recorded | 16,524 | 15,606 | 8,429
Average recorded investment | 21,465 | 20,124 | 33,034
Interest income recognized: |  |  |
With no related allowance recorded | 7 | 8 | 986
With an allowance recorded | 67 | 72 | 23
Interest income recognized | 74 | 80 | 1,009
Consumer loans |  |  |
Recorded investment: |  |  |
With no related allowance recorded | 19 | 19 | 21
Recorded investment | 19 | 19 | 21
Unpaid principal balance: |  |  |
With no related allowance recorded | 19 | 19 | 21
Unpaid principal balance | 19 | 19 | 21
Average recorded investment: |  |  |
With no related allowance recorded | 20 | 20 | 23
Average recorded investment | $ 20 | $ 20 | $ 23

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