Stockholders' Equity Stockholders' Equity Text tags (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended	12 Months Ended
	Jun. 30, 2011	Dec. 31, 1994	Dec. 31, 2011	Mar. 31, 2014	Mar. 31, 2015	Oct. 24, 1994
Stockholders' Equity Note [Abstract]
Common Stock, Shares, Issued				3,697,836	3,698,031	2,314,375
Common Stock, Par or Stated Value Per Share				$ 0.01	$ 0.01	$ 0.01
Share Price						$ 10
Proceeds from Issuance of Common Stock		$ 21.5
Tier One Leverage Capital Required for Capital Adequacy to Average Assets				9.00%	4.00%
Capital Required for Capital Adequacy to Risk Weighted Assets				13.00%	8.00%
OCC directive Tier 1 Leverage capital ratio				9.00%
OCC directive Total risk-based capital ratio				13.00%
Tier One Leverage Capital to Average Assets				10.38%	10.85%
Capital to Risk Weighted Assets				20.12%	16.78%
Tier One Risk Based Capital to Risk Weighted Assets				17.55%	15.10%
Proceeds from Issuance of Convertible Preferred Stock	$ 55.0
Proceeds from Issuance of Preferred Stock and Preference Stock	51.4
Proceeds from Contributions from Parent	$ 37.0		$ 7.0