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Stock-Based Compensation - Additional Information (Details) - USD ($) |  |  |  |  | 6 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Aug. 05, 2021 | Aug. 12, 2020 | Aug. 08, 2019 | Aug. 04, 2016 | Jul. 31, 2021 | Aug. 01, 2020 | Jan. 30, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Stock options granted |  |  |  |  |  | 1,518,154 |  |
Stock compensation expense |  |  |  |  |  | $ 643,000 | $ 797,000 |
Non Employee Directors |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Number of shares of common stock issued |  |  |  |  |  | 206,923 |  |
Fair value of common stock issued |  |  |  |  |  | $ 218,369 |  |
RSUs |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Shares granted |  |  |  |  |  | 8,054 |  |
Deferred stock |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Shares granted |  |  |  |  |  |  | 45,714 |
Time Vested Stock Options, RSU and PSU Awards |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Unrecognized stock compensation cost |  |  |  |  |  | $ 2,200,000 |  |
Unrecognized stock compensation cost weighted average recognition period |  |  |  |  |  | 29 months |  |
2016 Plan |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Common stock reserve, shares |  |  |  |  | 5,725,538 |  |  |
Reduction in outstanding reserve for share granted |  |  |  |  | 1.00% |  |  |
Reduction in outstanding reserve for share granted, full-value award |  |  |  |  | 1.90% |  |  |
Shares available for grant |  |  |  |  |  | 22,901 |  |
Number of additional shares authorized to increase share reserve |  |  | 1,740,000 | 2,800,000 |  |  |  |
Share-based compensation arrangement by share-based payment award, description |  |  |  |  |  | In accordance with the terms of the 2016 Plan, any shares outstanding under the previous 2006 Incentive Compensation Plan (the “2006 Plan”) at August 4, 2016 that subsequently terminate, expire or are cancelled for any reason without having been exercised or paid are added back and become available for issuance under the 2016 Plan, with stock options being added back on a one-for-one basis and full-value awards being added back on a 1 to 1.9 basis. |  |
Stock option outstanding |  |  |  |  |  | 5,135,923 |  | 3,647,581
Percent of shares available for awards |  |  |  |  | 5.00% |  |  |
Share-based compensation description |  |  |  |  |  | Except with respect to 5% of the shares available for awards under the 2016 Plan, no award will become exercisable unless such award has been outstanding for a minimum period of one year from its date of grant. |  |
Stock options granted | [1] |  |  |  |  | 1,518,154 |  |
Shares granted |  |  |  |  |  | 8,054 |  |
2016 Plan | RSUs |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Shares granted | [2] |  |  |  |  | 8,054 |  |
2016 Plan | Subsequent Event |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Number of additional shares authorized to increase share reserve |  | 4,855,000 |  |  |  |  |  |
2006 Plan |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Stock option outstanding |  |  |  |  |  | 412,826 |  |
[1] | Primarily represents the grant of stock options to purchase an aggregate of 1,078,913 shares of the Company’s common stock, at an exercise price of $0.69 per share, in connection with the time-based grant of awards under its 2021-2023 LTIP, see Note 5, Long-Term Incentive Plans. In March 2021, the Company also granted to active participants of the LTIP, a discretionary grant of stock options to purchase an aggregate of 414,337 shares of the Company’s common stock, at an exercise price of $0.75 per share, which will vest ratably over 3 years
[2] | During the first six months of fiscal 2021, the vesting of RSUs was primarily related to the time-based awards under the Company’s LTIP plans, see Note 5, Long-Term Incentive Plans.

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