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Fair Value Measurements Schedule of Fair Value Unobservable Input Reconciliation (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]    
Balance at beginning of period $ 309 $ 387
Total realized and unrealized gains (losses)    
Included in net income 0 0
Included in other comprehensive income 0 (7)
Principal paydowns (19) (71)
Transfers in and (out) of Level 3 0 0
Balance at end of period $ 290 $ 309