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Summary of Significant Accounting Policies - Additional Information (Details) |  |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Feb. 03, 2019 USD ($) | Dec. 26, 2018 USD ($) | Feb. 02, 2019 USD ($) Store shares | Feb. 02, 2019 USD ($) Store Segment shares | Feb. 03, 2018 USD ($) shares | Feb. 03, 2017 USD ($) | Jan. 28, 2017 USD ($) | Dec. 31, 2006
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Number of reportable segments | Segment |  |  |  | 1 |  |  |  |
Number of operating segments | Segment |  |  |  | 2 |  |  |  |
Amortization expense of intangibles |  |  |  | $ 321,000 | $ 400,000 |  | $ 400,000 |
Direct response advertising costs, amortization period |  |  |  | 1 year |  |  |  |
Direct response costs deferred |  |  | $ 0 | $ 0 | 0 |  |  |
Stock compensation expense |  |  |  | 2,004,000 | 1,636,000 |  | 1,256,000 |
Total grant-date fair value of options vested |  |  |  | 2,000,000 | 1,800,000 |  | 2,900,000 |
Impairment of assets |  |  |  | 4,579,000 | 4,095,000 |  | 376,000 |
Impairment charge |  |  |  | 3,100,000 | 4,100,000 | $ 400,000 |  |
Retained earnings (accumulated deficit) |  |  | (153,534,000) | (153,534,000) | (139,285,000) |  |  |
Accumulated other comprehensive income (loss) |  |  | (6,183,000) | $ (6,183,000) | (6,243,000) |  |  |
Sale-leaseback transaction, lease term description |  |  |  | The Company has also been amortizing a deferred gain from the sale-leaseback of its corporate office over the initial 20-year lease term. |  |  |  |
Sale-leaseback transaction, lease term |  |  |  | 20 years |  |  |  | 20 years
Amortization of deferred gain on sale-leaseback |  |  |  | $ 1,465,000 | $ 1,465,000 |  | 1,466,000 |
Sale-leaseback transaction, deferred gain |  |  | 10,300,000 | 10,300,000 |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Right-of-use assets | $ 217,000,000 |  |  |  |  |  |  |
Lease liabilities | 255,000,000 |  |  |  |  |  |  |
Elimination of lease related assets and liabilities as adjustment to right-of-use assets | $ 38,000,000 |  |  |  |  |  |  |
ASU 2018-02 |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Retained earnings (accumulated deficit) |  |  | (700,000) | (700,000) |  |  |  |
Accumulated other comprehensive income (loss) |  |  | $ 700,000 | $ 700,000 |  |  |  |
Unvested time-based restricted stock |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Dilutive shares | shares |  |  |  | 30,000 | 36,666 |  |  |
Deferred Stock |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Shares excluded from computation of basic earnings per share | shares |  |  | 204,040 | 204,040 | 115,457 |  |  |
Time-Vested Awards |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Unrecognized stock compensation cost |  |  | $ 2,000,000 | $ 2,000,000 |  |  |  |
Unrecognized stock compensation cost weighted average recognition period |  |  |  | 32 months |  |  |  |
Selling, General and Administrative Expenses |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Advertising expenses |  |  |  | $ 24,400,000 | $ 29,500,000 |  | $ 18,200,000 |
Customer Lists |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Gross carrying amount of intangibles |  |  | 7,700,000 | 7,700,000 | 7,700,000 |  |  |
Casual Male Trademark |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Accumulated amortization of intangibles |  |  | 7,700,000 | 7,700,000 | 7,400,000 |  |  |
Amortization expense of intangibles |  |  |  | 292,000 |  |  |  |
Technology Projects |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Impairment charge |  |  |  |  | $ 1,900,000 |  |  |
Rochester Trademark |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Impairment charge |  |  | $ 1,500,000 | $ 1,500,000 |  |  |  |
dxl.com Domain |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Rights purchase price |  | $ 1,000,000 |  |  |  |  |  |
Transaction costs incurred to purchase rights |  | $ 150,000 |  |  |  |  |  |
Minimum |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Credit card and debit card receivables from banks settlement period |  |  |  | 2 days |  |  |  |
Maximum |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Credit card and debit card receivables from banks settlement period |  |  |  | 4 days |  |  |  |
DXL Stores | UNITED STATES |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Number of stores | Store |  |  | 216 | 216 |  |  |  |
Casual Male XL Retail and Outlet Stores | UNITED STATES |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Number of stores | Store |  |  | 66 | 66 |  |  |  |
Casual Male XL outlets |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Number of stores | Store |  |  | 30 | 30 |  |  |  |
DXL Outlets |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Number of stores | Store |  |  | 15 | 15 |  |  |  |
Rochester Clothing Stores | UNITED STATES |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Number of stores | Store |  |  | 5 | 5 |  |  |  |
Rochester Clothing Stores | UNITED KINGDOM |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Number of stores | Store |  |  | 1 | 1 |  |  |  |
Rochester Clothing Stores | Canada |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Number of stores | Store |  |  | 2 | 2 |  |  |  |

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