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Bank subsidiary (Details 10) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2012 | Jun. 30, 2012 | Dec. 31, 2011
Carrying amount and the total unpaid principal balance of impaired loans |  |  |
Recorded investment | $ 113,461 | $ 113,461 | $ 123,689
Unpaid principal balance | 130,278 | 130,278 | 142,238
Related Allowance | 3,088 | 3,088 | 3,704
Average recorded investment | 114,025 | 116,250 | 129,925
Interest income recognized | 1,129 | 2,535 | 7,267
With no related allowance recorded |  |  |
Carrying amount and the total unpaid principal balance of impaired loans |  |  |
Recorded investment | 95,470 | 95,470 | 105,811
Unpaid principal balance | 111,975 | 111,975 | 124,300
Average recorded investment | 99,556 | 101,076 | 110,109
Interest income recognized | 940 | 2,076 | 5,726
With an allowance recorded |  |  |
Carrying amount and the total unpaid principal balance of impaired loans |  |  |
Recorded investment | 17,991 | 17,991 | 17,878
Unpaid principal balance | 18,303 | 18,303 | 17,938
Related Allowance | 3,088 | 3,088 | 3,704
Average recorded investment | 14,469 | 15,174 | 19,816
Interest income recognized | 189 | 459 | 1,541
Residential 1-4 family |  |  |
Carrying amount and the total unpaid principal balance of impaired loans |  |  |
Recorded investment | 20,925 | 20,925 | 22,742
Unpaid principal balance | 27,029 | 27,029 | 30,139
Related Allowance | 324 | 324 | 203
Average recorded investment | 20,972 | 21,551 | 24,912
Interest income recognized | 138 | 302 | 483
Residential 1-4 family | With no related allowance recorded |  |  |
Carrying amount and the total unpaid principal balance of impaired loans |  |  |
Recorded investment | 16,405 | 16,405 | 19,217
Unpaid principal balance | 22,509 | 22,509 | 26,614
Average recorded investment | 16,897 | 17,697 | 21,385
Interest income recognized | 79 | 168 | 282
Residential 1-4 family | With an allowance recorded |  |  |
Carrying amount and the total unpaid principal balance of impaired loans |  |  |
Recorded investment | 4,520 | 4,520 | 3,525
Unpaid principal balance | 4,520 | 4,520 | 3,525
Related Allowance | 324 | 324 | 203
Average recorded investment | 4,075 | 3,854 | 3,527
Interest income recognized | 59 | 134 | 201
Commercial real estate |  |  |
Carrying amount and the total unpaid principal balance of impaired loans |  |  |
Recorded investment | 12,938 | 12,938 | 13,397
Unpaid principal balance | 12,938 | 12,938 | 13,397
Average recorded investment | 13,152 | 13,254 | 13,404
Interest income recognized | 92 | 237 | 747
Commercial real estate | With no related allowance recorded |  |  |
Carrying amount and the total unpaid principal balance of impaired loans |  |  |
Recorded investment | 12,938 | 12,938 | 13,397
Unpaid principal balance | 12,938 | 12,938 | 13,397
Average recorded investment | 13,152 | 13,254 | 13,404
Interest income recognized | 92 | 237 | 747
Home equity line of credit |  |  |
Carrying amount and the total unpaid principal balance of impaired loans |  |  |
Recorded investment | 654 | 654 | 711
Unpaid principal balance | 1,552 | 1,552 | 1,612
Average recorded investment | 655 | 657 | 954
Interest income recognized |  | 1 | 6
Home equity line of credit | With no related allowance recorded |  |  |
Carrying amount and the total unpaid principal balance of impaired loans |  |  |
Recorded investment | 654 | 654 | 711
Unpaid principal balance | 1,552 | 1,552 | 1,612
Average recorded investment | 655 | 657 | 954
Interest income recognized |  | 1 | 6
Residential land |  |  |
Carrying amount and the total unpaid principal balance of impaired loans |  |  |
Recorded investment | 29,836 | 29,836 | 38,573
Unpaid principal balance | 36,426 | 36,426 | 46,988
Related Allowance | 2,321 | 2,321 | 2,525
Average recorded investment | 31,975 | 33,729 | 41,556
Interest income recognized | 441 | 1,031 | 2,382
Residential land | With no related allowance recorded |  |  |
Carrying amount and the total unpaid principal balance of impaired loans |  |  |
Recorded investment | 22,639 | 22,639 | 30,781
Unpaid principal balance | 29,170 | 29,170 | 39,136
Average recorded investment | 24,774 | 26,337 | 33,398
Interest income recognized | 319 | 724 | 1,779
Residential land | With an allowance recorded |  |  |
Carrying amount and the total unpaid principal balance of impaired loans |  |  |
Recorded investment | 7,197 | 7,197 | 7,792
Unpaid principal balance | 7,256 | 7,256 | 7,852
Related Allowance | 2,321 | 2,321 | 2,525
Average recorded investment | 7,201 | 7,392 | 8,158
Interest income recognized | 122 | 307 | 603
Commercial loans |  |  |
Carrying amount and the total unpaid principal balance of impaired loans |  |  |
Recorded investment | 49,085 | 49,085 | 48,241
Unpaid principal balance | 52,310 | 52,310 | 50,077
Related Allowance | 443 | 443 | 976
Average recorded investment | 47,248 | 47,035 | 49,083
Interest income recognized | 458 | 964 | 3,649
Commercial loans | With no related allowance recorded |  |  |
Carrying amount and the total unpaid principal balance of impaired loans |  |  |
Recorded investment | 42,811 | 42,811 | 41,680
Unpaid principal balance | 45,783 | 45,783 | 43,516
Average recorded investment | 44,055 | 43,107 | 40,952
Interest income recognized | 450 | 946 | 2,912
Commercial loans | With an allowance recorded |  |  |
Carrying amount and the total unpaid principal balance of impaired loans |  |  |
Recorded investment | 6,274 | 6,274 | 6,561
Unpaid principal balance | 6,527 | 6,527 | 6,561
Related Allowance | 443 | 443 | 976
Average recorded investment | 3,193 | 3,928 | 8,131
Interest income recognized | 8 | 18 | 737
Consumer loans |  |  |
Carrying amount and the total unpaid principal balance of impaired loans |  |  |
Recorded investment | 23 | 23 | 25
Unpaid principal balance | 23 | 23 | 25
Average recorded investment | 23 | 24 | 16
Consumer loans | With no related allowance recorded |  |  |
Carrying amount and the total unpaid principal balance of impaired loans |  |  |
Recorded investment | 23 | 23 | 25
Unpaid principal balance | 23 | 23 | 25
Average recorded investment | $ 23 | $ 24 | $ 16

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