SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Detail) - Schedule of Share-Based Compensation (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Jan. 31, 2011	Jan. 31, 2013
Outstanding—Beginning of year	269	726	824	169
Outstanding—Beginning of year (in Dollars per share)	$ 13.15	$ 10.16	$ 10.14	$ 12.46
Exercised	(100)	(457)	(98)
Exercised (in Dollars per share)	$ 14.30	$ 8.41	$ 10.00
Outstanding and exercisable—End of year	169	269	726
Outstanding and exercisable—End of year (in Dollars per share)	$ 12.46	$ 13.15	$ 10.16
Outstanding and exercisable—End of year	1 year
Outstanding and exercisable—End of year (in Dollars)	$ 1,582