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Stock-Based Compensation - Narrative (Detail) - USD ($) |  |  |  |  |  |  |  |  | 9 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jan. 04, 2021 | Oct. 01, 2020 | Jul. 01, 2020 | Jan. 02, 2020 | Oct. 01, 2019 | Jul. 18, 2019 | Jul. 01, 2019 | Aug. 02, 2018 | Jan. 31, 2021 | Feb. 02, 2020 | Sep. 16, 2015
Performance-Based Restricted Stock Units [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of units expected to vest |  |  |  |  |  |  |  |  |  |  |  | $ 159,000 |  |
Remaining unrecognized compensation cost |  |  |  |  |  |  |  |  |  |  |  | $ 66,000 |  |
Weighted average period over which unrecognized compensation cost is expected to be recognized |  |  |  |  |  |  |  |  |  |  |  | 1 year 2 months 12 days |  |
Performance-Based Restricted Stock Units [Member] | Selling, General and Administrative Expenses [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation expense |  |  |  |  |  |  |  |  |  |  |  | $ 127,000 | $ 467,000 |
Performance-Based Restricted Stock Units [Member] | Senior Executives [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares/units granted |  |  |  |  |  |  | 93,653 | [1],[2] |  | 86,599 | [1],[2] | 0 |  |
Price Per Share | [2] |  |  |  |  |  | $ 19.04 | [3] |  | $ 18.51 | [4] |  |  |
Performance-Based Restricted Stock Units [Member] | Key Employees [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares/units granted |  |  |  |  |  |  | 29,227 | [1],[5] |  | 47,800 | [1],[5] | 0 |  |
Price Per Share | [5],[6] |  |  |  |  |  | $ 18.49 |  |  | $ 24.35 |  |  |  |
Performance-Based Restricted Stock Units [Member] | Non-employee [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares/units granted |  |  |  |  |  |  |  |  |  |  |  | 0 |  |
Time-Based Restricted Stock Units [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of units expected to vest |  |  |  |  |  |  |  |  |  |  |  | $ 2,700,000 |  |
Remaining unrecognized compensation cost |  |  |  |  |  |  |  |  |  |  |  | $ 1,600,000 |  |
Weighted average period over which unrecognized compensation cost is expected to be recognized |  |  |  |  |  |  |  |  |  |  |  | 2 years 3 months 18 days |  |
Time-Based Restricted Stock Units [Member] | Selling, General and Administrative Expenses [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation expense |  |  |  |  |  |  |  |  |  |  |  | $ 429,000 | 154,000 |
Common Stock Awards [Member] | Selling, General and Administrative Expenses [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation expense |  |  |  |  |  |  |  |  |  |  |  | $ 210,000 | $ 210,000 |
Common Stock Awards [Member] | Outside Directors [Member] | Immediate Vesting [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares/units granted |  | 4,563 | 5,193 | 7,000 | 4,972 | 4,519 |  |  | 3,659 |  |  |  |  |
Price Per Share |  | $ 15.34 | $ 13.48 | $ 10.00 | $ 14.08 | $ 15.49 |  |  | $ 19.21 |  |  |  |  |
2015 Equity Incentive Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of common stock authorized for issuance |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,200,000
Number of shares available for future equity based grants |  |  |  |  |  |  |  |  |  |  |  | 544,166 |  |
[1] | Amounts represent the maximum number of common stock shares that could be earned if certain performance targets are met as defined in the related restricted stock unit agreements.
[2] | Performance-based restricted stock units awarded to senior executives.
[3] | Price per share represents the fair market value per share ($1.03 per $1, or an increase of $0.55 to the closing price of our common stock on the date of grant) determined using the Monte Carlo simulation model for the market-based total shareholder return component and the closing price of our common stock ($18.49) for the performance-based component of the performance-based restricted stock units granted to senior executives on July 18, 2019.
[4] | Price per share represents the fair market value per share ($0.76 per $1, or a reduction of $5.84 to the closing price of the common stock on the date of grant) determined using the Monte Carlo simulation model for the market-based total shareholder return component and the closing price of our common stock ($24.35) for the performance-based component of the performance-based restricted stock units granted to senior executives on August 2, 2018.
[5] | Performance-based restricted stock units awarded to key employees.
[6] | Price per share represents the closing price of our common stock on the date of grant.

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