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Shareholders' Equity - Summary of Service-Based Restricted Stock Awards and Units Activity (Detail) (USD $)
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3 Months Ended |
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May 04, 2013
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
| Shares Outstanding at February 2, 2013 |
1,795,943 |
| Granted, Shares |
120,000 |
| Vested, Shares |
(437,090) |
| Forfeited or expired, Shares |
(3,527) |
| Shares Outstanding at May 4, 2013 |
1,475,326 |
| Weighted-Average Grant-Date Fair Value, Outstanding at February 2, 2013 |
$ 2.16 |
| Weighted-Average Grant-Date Fair Value, Granted |
$ 2.16 |
| Weighted-Average Grant-Date Fair Value Vested |
$ 2.28 |
| Weighted-Average Grant-Date Fair Value, Forfeited |
$ 1.77 |
| Weighted-Average Grant-Date Fair Value, Outstanding at May 4, 2013 |
$ 2.13 |
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Restricted Stock Units [Member]
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
| Shares Outstanding at February 2, 2013 |
125,000 |
| Granted, Shares |
|
| Vested, Shares |
|
| Forfeited or expired, Shares |
|
| Shares Outstanding at May 4, 2013 |
125,000 |
| Weighted-Average Grant-Date Fair Value, Outstanding at February 2, 2013 |
$ 1.57 |
| Weighted-Average Grant-Date Fair Value, Granted |
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| Weighted-Average Grant-Date Fair Value Vested |
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| Weighted-Average Grant-Date Fair Value, Forfeited |
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| Weighted-Average Grant-Date Fair Value, Outstanding at May 4, 2013 |
$ 1.57 |