FAIR VALUE MEASUREMENTS (Tables)

9 Months Ended

Oct. 31, 2012

FAIR VALUE MEASUREMENTS [Abstract]

Summary of Financial Assets, Measured at Fair Value

The following table sets forth the financial assets and liabilities, measured at fair value, as of October 31, 2012 and January 31, 2012:

	Fair value measurement at reporting date using
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)
			(in thousands)
Money market mutual funds as of    October 31, 2012	$	47,923	$	—		$	—
Money market mutual funds as of    January 31, 2012	$	48,242	$	—		$	—
Liability related to interest rate swap as of October 31, 2012	$	—	$	(745	)	$	—

Fair Value of Derivative Instrument

The fair values of the derivative instrument at October 31, 2012 and January 31, 2012 were as follows (in thousands):

	Asset/(Liability) Derivative
		Fair Value
	Balance Sheet Location	October 31,			January 31,
		2012			2012
Derivative instrument:
Interest rate swap	Other liabilities	$	(745	)	$	—
Total		$	(745	)	$	—