Securities (Details Textual) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Investment Holdings [Line Items]
Available-for-sale Securities Pledged as Collateral	$ 202,200,000		$ 217,600,000
Proceeds from Sale of Available-for-sale Securities	35,948,000	11,062,000
Available-for-sale Securities, Gross Realized Gains	2,200,000	1,200,000
Investments In Federal Home Loan Bank And Federal Reserve Bank Stock	4,400,000		4,200,000
Proceeds from Sale of Held-to-maturity Securities	0	2,686,000
Held-to-maturity Securities, Sold Security, Realized Gain (Loss)		400,000
Minimum Percentage Of Unrealized Loss On Amortized Cost	5.00%
Available-for-sale Securities, Gross Unrealized Loss, Total	128,000		768,000
Held-to-maturity Securities, Sold Security, at Carrying Value		2,300,000
Corporate Debt Securities [Member]
Investment Holdings [Line Items]
Minimum Percentage Of Unrealized Loss On Amortized Cost	5.00%
Available-for-sale Securities, Gross Unrealized Loss, Total	75,000		80,000
Percentage Of Unrealized Loss On Amortized Cost	15.00%
One To Four Family Residential Mortgage Backed Securities [Member]
Investment Holdings [Line Items]
Percentage Of Unrealized Loss On Amortized Cost	0.06%
Other Assets [Member]
Investment Holdings [Line Items]
Federal Reserve Bank Stock	$ 1,300,000		$ 1,300,000