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Loans and reserve for credit losses (Schedule of Payment Defaults on Troubled Debt Restructurings on Financing Receivables) (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2013
loan
|
Dec. 31, 2012
loan
|
|
| Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items] | ||
| Number of loans | 2 | 3 |
| TDRs restructured in the period with a payment default | $ 3,500 | $ 205 |
| Commercial real estate | ||
| Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items] | ||
| Number of loans | 2 | 0 |
| TDRs restructured in the period with a payment default | 3,500 | 0 |
| Commercial and industrial | ||
| Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items] | ||
| Number of loans | 0 | 1 |
| TDRs restructured in the period with a payment default | 0 | 193 |
| Consumer | ||
| Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items] | ||
| Number of loans | 0 | 2 |
| TDRs restructured in the period with a payment default | $ 0 | $ 12 |