Quarterly report pursuant to Section 13 or 15(d)

Held-to-Maturity Securities (Details Textuals)

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Held-to-Maturity Securities (Details Textuals) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Schedule of Held-to-maturity Securities [Line Items]        
Available for sale securities transferred to held to maturity securities $ 0 $ 0 $ 0 $ 0
Purchases of held-to-maturity securities     215,447,000 0
Held-to-Maturity Securities (Textuals)        
Unrealized net losses recognized in OCI at time of transfer of available for sale securities transferred to Held To Maturity Securities $ 0 $ 0 $ 0 $ 0