Income Taxes (Provision) Benefit for Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Jan. 31, 2011
Current Income Tax Expense (Benefit) [Abstract]
Federal	$ (210)	$ 475	$ (826)
State	(65)	137	250
Foreign	4,964	(2,731)	9,028
Total current	4,689	(2,119)	8,452
Deferred Income Tax Expense (Benefit) [Abstract]
Federal and State	350	695	468
Foreign	(2,338)	361	(5,492)
Deferred Income Tax Expense (Benefit)	(1,988)	1,056	(5,024)
Income Tax Expense (Benefit)	$ 2,701	$ (1,063)	$ 3,428