Investment Securities Text Figures (Details)	3 Months Ended							12 Months Ended
	Mar. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Sep. 30, 2014 USD ($)	Jun. 30, 2014 USD ($)	Mar. 31, 2014 USD ($)	Sep. 30, 2013 USD ($)	Jun. 30, 2013 USD ($)	Mar. 31, 2015 USD ($)	Mar. 31, 2014 USD ($)	Mar. 31, 2013 USD ($)
Schedule of Investments [Line Items]
Income tax expense (benefit)	$ (31,000)	$ (62,000)	$ (57,000)	$ (16,000)	$ (8,000)	$ (16,000)	$ (72,000)	$ 166,000	$ 102,000	$ 328,000
Available-for-sale	$ 101,185,000				89,461,000			$ 101,185,000	89,461,000
Percentage Available-for-sale Securities	89.50%							89.50%
Held-to-maturity Securities, Amortized Cost	$ 11,922,000				9,029,000			$ 11,922,000	9,029,000
Percentage Held-to-maturity Securities	10.50%							10.50%
Trading Securities	$ 0							$ 0
Available-for-sale Securities, Change in Net Unrealized Holding Gain (Loss) before Taxes								1,000,000	4,800,000
Proceeds from Sale and Maturity of Held-to-maturity Securities								0	2,800,000
Gain (Loss) on Sale of Other Investments									$ 41,000
Financial Instruments, Owned and Pledged as Collateral, at Fair Value	$ 42,200,000							$ 42,200,000
Number of securities with unrealized loss								23	34
Number of MBS with unrealized loss more than 12 months								8
Number of agencies with unrealized loss more than 12 months	10							10
Mortgage-backed securities
Schedule of Investments [Line Items]
Percentage Available-for-Sale, Continuos Unrealized Loss Position	31.20%							31.20%
Available-for-sale	$ 27,019,000				27,741,000			$ 27,019,000	$ 27,741,000
Held-to-maturity Securities, Amortized Cost	$ 11,755,000				8,822,000			$ 11,755,000	8,822,000
US Government Agency Securities
Schedule of Investments [Line Items]
Percentage Available-for-Sale, Continuos Unrealized Loss Position	68.80%							68.80%
Available-for-sale	$ 57,850,000				$ 52,189,000			$ 57,850,000	$ 52,189,000