Investments (Tables)

12 Months Ended

Jan. 31, 2015

Notes to Financial Statements [Abstract]

Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis

Investment assets of the rabbi trust are valued based on quoted market prices or the net asset value at the closing price reported in certain major markets as of the measurement date, which are considered Level 1 inputs. The following tables segregate the rabbi trust assets that are measured at fair value on a recurring basis into the most appropriate level within the fair value hierarchy based on the inputs used to determine fair value at the measurement date:

	January 31, 2015		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(in thousands)
Non-qualified deferred compensation plan assets
Equity securities	$	3,098	$	3,098	$	—	$	—
Equity funds	7,024		7,024		—		—
Money market funds	1,410		1,410		—		—
Fixed income funds	911		911		—		—
Total assets	$	12,443	$	12,443	$	—	$	—
	February 1, 2014		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(in thousands)
Non-qualified deferred compensation plan assets
Equity securities	$	3,698	$	3,698	$	—	$	—
Equity funds	6,944		6,944		—		—
Fixed income funds	782		782		—		—
Total assets	$	11,424	$	11,424	$	—	$	—