Commitments and Contingencies Representation and warranty reserve (Details) $ in Thousands		12 Months Ended
		Mar. 31, 2015 USD ($)
Representation and warranty reserve [Abstract]
Representation and warranty repurchase reserve, beginning of period	[1]	$ 287
Provision for mortgage representation and warranty losses	[2]	119
Net realized losses	[2]	0
Representation and warranty repurchase reserve, end of period	[1]	$ 406

[1] (1) Reported in consolidated statements of financial condition as a component of other liabilities.

[2] (2) Component of other non-interest expense.