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Employee Benefit Plans (Details Textual) (USD $) | 12 Months Ended
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Feb. 02, 2013 | Jan. 28, 2012 | Jan. 29, 2011
Employee Benefit Plans (Textual) [Abstract] |  |  |
Total stock-based compensation expense | $ 2,700,000 | $ 3,100,000 | $ 2,700,000
Restricted stock units granted | 94,000 |  |
Restricted stock units outstanding | 247,000 | 179,000 |
Options to purchase outstanding common stock | 1,417,906 | 1,315,024 |
Recognized over a weighted average period | 1 year 10 months 24 days |  |
Restricted stock units, fair value grant prices per share | $ 10.93 |  |
Employee Benefit Plans (Additional Textual) [Abstract] |  |  |
Shares reserved for future stock-based grants | 313,000 |  |
Weighted average grant, fair value of options granted | $ 10.93 | $ 12.31 | $ 11.30
Intrinsic value of options exercised | 400,000 | 1,300,000 | 2,900,000
Unrecognized stock compensation expense | 2,500,000 |  |
Maximum Employee Contribution Percent | 6.00% |  |
Percentage of Employee's Contribution Matched by Company | 50.00% |  |
Company's matching contributions | 446,000 | 402,000 | 400,000
Company's additional contributions on behalf of employees | 0 | 0 | 0
Company's matching contributions | 65,000 | 60,000 | 69,000
Restricted Stock units [Member] |  |  |
Employee Benefit Plans (Textual) [Abstract] |  |  |
Total stock-based compensation expense | 1,300,000 | 1,100,000 | 957,000
Options exercise prices, Lower limit | $ 10.93 |  |
Options exercise prices, Upper limit | $ 19.06 |  |
Restricted stock units granted | 94,000 | 89,000 | 114,000
Restricted stock units outstanding | 247,000 |  |
Recognized over a weighted average period | 10 months 24 days |  |
Restricted Stock Units Granted to Directors and Vested on First Anniversary of Grant Date | 100.00% |  |
Percentage of Restricted Stock Units Granted to Employees vested on Third Anniversary of Grant date | 100.00% |  |
Restricted stock units, fair value grant prices per share | $ 10.93 | $ 12.33 | $ 19.31
Unrecognized compensation expense related to RSUs | 1,200,000 |  |
Employee stock purchase plan [Member] |  |  |
Employee Benefit Plans (Textual) [Abstract] |  |  |
Maximum shares of common stock award | 500,000 |  |
Payroll deduction of the fair market value | 85.00% |  |
Shares of common stock issued | 30,545 | 29,204 | 24,185
Shares remaining under the original authorization | 71,000 |  |
In Money Stock Option [Member] |  |  |
Employee Benefit Plans (Textual) [Abstract] |  |  |
Options to purchase outstanding common stock | 972,906 |  |
Intrinsic value of in-the-money options outstanding | 2,600,000 |  |
Aggregate Intrinsic value options exercisable | $ 2,500,000 |  |
Maximum [Member] |  |  |
Employee Benefit Plans (Textual) [Abstract] |  |  |
Maximum shares of common stock award | 2,500,000 |  |
Maximum contractual terms | 10 years |  |
Options issued to employees, Vested term | 4 years |  |
Options exercise prices, Upper limit | $ 19.06 |  |
Minimum [Member] |  |  |
Employee Benefit Plans (Textual) [Abstract] |  |  |
Options issued to employees, Vested term | 3 years |  |
Options exercise prices, Lower limit | $ 2.03 |  |

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- Definition Share based compensation arrangement by share based payment award maximum contractual period terms. + References No definition available. + Details
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- Definition Share based compensation arrangement by share based payment award percentage of units granted to directors and vested on first anniversary of grant date. + References No definition available. + Details
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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph g(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=6793087&loc=d3e301413-122809 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(2)(c) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph c(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(2)(c) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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