Borrowings (Details 1) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Repurchase agreements:
Securities Sold Under Repurchase Agreements	$ 54,237	$ 54,759
Gross amount of recognized liabilities for repurchase agreements	54,237	54,759
Collateralized Mortgage Obligations [Member]
Repurchase agreements:
Securities Sold Under Repurchase Agreements	37,214	38,189
Maturity Greater than 90 Days [Member]
Repurchase agreements:
Securities Sold Under Repurchase Agreements	0	0
Maturity Greater than 90 Days [Member] | Collateralized Mortgage Obligations [Member]
Repurchase agreements:
Securities Sold Under Repurchase Agreements	0	0
Maturity 30 to 90 Days [Member]
Repurchase agreements:
Securities Sold Under Repurchase Agreements	0	0
Maturity 30 to 90 Days [Member] | Collateralized Mortgage Obligations [Member]
Repurchase agreements:
Securities Sold Under Repurchase Agreements	0	0
Maturity Less than 30 Days [Member]
Repurchase agreements:
Securities Sold Under Repurchase Agreements	0	0
Maturity Less than 30 Days [Member] | Collateralized Mortgage Obligations [Member]
Repurchase agreements:
Securities Sold Under Repurchase Agreements	0	0
Maturity Overnight [Member]
Repurchase agreements:
Securities Sold Under Repurchase Agreements	54,237	54,759
Maturity Overnight [Member] | Collateralized Mortgage Obligations [Member]
Repurchase agreements:
Securities Sold Under Repurchase Agreements	37,214	38,189
Residential Mortgage Backed Securities [Member]
Repurchase agreements:
Securities Sold Under Repurchase Agreements	17,023	16,570
Residential Mortgage Backed Securities [Member] | Maturity Greater than 90 Days [Member]
Repurchase agreements:
Securities Sold Under Repurchase Agreements	0	0
Residential Mortgage Backed Securities [Member] | Maturity 30 to 90 Days [Member]
Repurchase agreements:
Securities Sold Under Repurchase Agreements	0	0
Residential Mortgage Backed Securities [Member] | Maturity Less than 30 Days [Member]
Repurchase agreements:
Securities Sold Under Repurchase Agreements	0	0
Residential Mortgage Backed Securities [Member] | Maturity Overnight [Member]
Repurchase agreements:
Securities Sold Under Repurchase Agreements	$ 17,023	$ 16,570