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Fair Value Measurements (Details 2) (Mortgage Backed Securities [Member], USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2014
Mortgage Backed Securities [Member]
 
Reconciliation of activity for mortgage-backed securities on a net basis  
Balance at the beginning of the period $ 27,852
Principal paydowns (1,962)
Total unrealized gains included in:  
Other comprehensive income 386
Impairment realized in earnings (279)
Balance at the end of the period $ 25,996