Consolidated Statements of Operations and Comprehensive Income (Loss) (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Apr. 28, 2012	Apr. 30, 2011
Unrealized (loss) gain on short-term and long-term investments, tax	$ 0	$ 54

Other Comprehensive Income, Net Unrealized Gains And Losses On Securities, Tax

No definition available.

Name:	hott_OtherComprehensiveIncomeNetUnrealizedGainsAndLossesOnSecuritiesTax
Namespace Prefix:	hott_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration