Short-Term Borrowings (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Short Term Debt [Line Items]
Short-term borrowings	$ 3,608	$ 2,499
Repurchase Agreements
Short Term Debt [Line Items]
Total collateral carrying value	4,586	5,817
Repurchase Agreements | U.S. Government-sponsored mortgage-backed securities
Short Term Debt [Line Items]
Total collateral carrying value	1,283	4,729
Repurchase Agreements | U.S. Government-sponsored collateralized mortgage obligations
Short Term Debt [Line Items]
Total collateral carrying value	$ 3,303	$ 1,088