Derivatives and Financial Instruments (Details)	3 Months Ended
	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)	Mar. 31, 2014 USD ($) swap
Derivative [Line Items]
Number of interest rate swaps | swap			2
Derivatives not designated as hedging instruments [Member]
Derivative [Line Items]
Gain (loss) recognized in income	$ 8,000	$ 72,000
Mortgage loan rate lock commitments [Member] | Derivatives not designated as hedging instruments [Member]
Derivative [Line Items]
Gain (loss) recognized in income	1,000	(7,000)
Mortgage loan forward sales [Member] | Derivatives not designated as hedging instruments [Member]
Derivative [Line Items]
Gain (loss) recognized in income	7,000	79,000
FHLB advances [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Notional amount			$ 40,000,000
FHLB advances [Member] | Interest Rate Swap [Member] | Derivatives designated as hedging instruments [Member]
Derivative [Line Items]
Gain (loss) recognized in income	$ (549,000)	$ (321,000)
FHLB advances [Member] | Interest Rate Swap 1 [Member]
Derivative [Line Items]
Notional amount			20,000,000
FHLB advances [Member] | Interest Rate Swap 2 [Member]
Derivative [Line Items]
Notional amount			$ 20,000,000