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Shareholders' Equity - Additional Information (Details) |  |  | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Feb. 02, 2021 USD ($) | Jan. 29, 2021 USD ($) $ / shares shares | Jul. 02, 2022 USD ($) $ / shares shares | Jul. 03, 2021 USD ($) | Jul. 02, 2022 USD ($) $ / shares shares | Jul. 01, 2022 shares | Jul. 03, 2021 USD ($) shares | Jan. 01, 2022 $ / shares shares | Jan. 02, 2021 shares
Shareholders Equity [Line Items] |  |  |  |  |  |  |  |  |
Common stock, shares authorized (in shares) |  |  | 10,000,000 |  | 10,000,000 |  |  | 10,000,000 |
Common stock, issued shares (in shares) |  |  | 3,150,230 |  | 3,150,230 |  |  | 2,827,410 |
Common stock, outstanding shares (in shares) |  |  | 3,150,230 |  | 3,150,230 |  |  | 2,827,410 |
Common stock par value | $ / shares |  |  | $ 0.001 |  | $ 0.001 |  |  | $ 0.001 |
Gross proceeds reimbursement for accountable legal expenses | $ |  | $ 420,000 |  |  |  |  |  |  |
Options outstanding |  |  | 117,500 |  | 117,500 |  |  | 117,500 | 113,900
Options granted |  |  | 0 |  |  | 0 |  | 38,000 |
Number of shares converted |  |  | 205,287 |  | 205,287 |  |  |  |
Number of shares converted to Common Stock |  |  | 322,820 |  | 322,820 |  |  |  |
Preferred Stock outstanding |  |  | 222,588 |  | 222,588 |  |  | 238,729 |
Stock Options |  |  |  |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |  |  |  |
Share-based compensation expense | $ |  |  | $ 1,000,000 | $ 71,000,000 | $ 4,000,000 |  | $ 180,000,000 |  |
2016 Plan |  |  |  |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |  |  |  |
Options expiration date |  |  |  |  | Oct. 28, 2026 |  |  |  |
Options authorized for issuance |  |  | 800,000 |  | 800,000 |  |  |  |
Options outstanding |  |  | 90,000 |  | 90,000 |  |  | 90,000 |
2011 Plan |  |  |  |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |  |  |  |
Options outstanding |  |  | 27,500 |  | 27,500 |  |  | 27,500 |
Additional awards to be granted after adoption of 2016 plan |  |  |  |  | 0 |  |  |  |
Series A1 Convertible Preferred Stock [Member] |  |  |  |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |  |  |  |
Conversion of Stock, Shares Issued |  |  |  |  | 16,141 |  |  |  |
Common Stock |  |  |  |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |  |  |  |
Preferred Stock, Convertible, Conversion Ratio |  |  | 0.05 |  | 0.05 |  |  |  |
Common Stock | Equity Offering |  |  |  |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |  |  |  |
Common stock, shares authorized (in shares) |  | 571,428 |  |  |  |  |  |  |
Common stock par value | $ / shares |  | $ 0.001 |  |  |  |  |  |  |
Common stock purchase price per share | $ / shares |  | $ 10.50 |  |  |  |  |  |  |
Common stock gross proceeds before deducting placement agent fees and offering expenses | $ | $ 6,000,000.0 |  |  |  |  |  |  |  |
Common Stock | Equity Offering | Placement Agency Agreement |  |  |  |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |  |  |  |
Percentage of cash fee gross proceeds |  | 7.00% |  |  |  |  |  |  |
Common Stock | Equity Offering | Maximum | Placement Agency Agreement |  |  |  |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |  |  |  |
Gross proceeds reimbursement for accountable legal expenses | $ |  | $ 35,000 |  |  |  |  |  |  |
Series A Preferred |  |  |  |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |  |  |  |
Number of shares converted |  |  | 4,105,732 |  | 4,105,732 |  |  |  |
Conversion of Stock, Shares Issued |  |  |  |  | 16,141 |  |  |  |
Preferred Stock outstanding |  |  | 222,588 |  | 222,588 |  |  | 238,729 |
Contractor |  |  |  |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |  |  |  |
Stock issued for services, shares |  |  |  |  | 0 |  | 0 |  |
Articles of Incorporation |  |  |  |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |  |  |  |
Common stock, shares authorized (in shares) |  |  | 200,000,000 |  | 200,000,000 |  |  |  |

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