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Loans (Details 7) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011
Recorded investment | $ 0 | $ 32,000
Unpaid principal balance | 0 | 32,000
Related allowance | 0 | 14,800
Average principal loan balance | 0 | 26,860
Interest income recognized | 2,288 | 2,375
Private Corporation [Member] |  |
Recorded investment | 0 | 32,000
Unpaid principal balance | 0 | 32,000
Related allowance | 0 | 14,800
Average principal loan balance | 0 | 26,860
Interest income recognized | $ 2,288 | $ 2,375

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