|
Borrowed Funds (Summary of Short Term Borrowings) (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 12 Months Ended |
|---|---|---|
|
Mar. 31, 2013
|
Dec. 31, 2012
|
|
| Borrowed Funds [Abstract] | ||
| Outstanding at end of period | $ 38,633 | $ 39,257 |
| Weighted average interest rate at end of period | 0.14% | 0.34% |
| Maximum amount outstanding as of any month end | 38,633 | 52,367 |
| Average amount outstanding | $ 38,465 | $ 38,812 |
| Approximate weighted average rate during the period | 0.14% | 0.34% |