Fair Value Disclosures (Level 4 FV of Fin Instr) (Details) (Fair Value, Measurements, Recurring [Member], Level 2 [Member], USD $) In Thousands, unless otherwise specified	Jan. 31, 2015	Jan. 31, 2014
Forward Contracts [Member] | Residential Mortgage [Member]
Summary of assets and (liabilities), measured at fair value on a recurring basis
Derivative (Liability)/Asset	$ (189)	$ (341)
Corporate Debt Securities [Member]
Summary of assets and (liabilities), measured at fair value on a recurring basis
Fair value of securities	10,022	12,026
Assets Held-for-sale [Member] | Residential Mortgage [Member]
Summary of assets and (liabilities), measured at fair value on a recurring basis
Loans Held-for-sale, Fair Value Disclosure	55,945	101,944
Interest Rate Lock Commitments [Member] | Forward Contracts [Member]
Summary of assets and (liabilities), measured at fair value on a recurring basis
Derivative Asset/(Liability)	(156)	108
Interest Rate Lock Commitments [Member]
Summary of assets and (liabilities), measured at fair value on a recurring basis
Derivative (Liability)/Asset	$ 156	$ (108)