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v3.23.1

Stockholders' Equity - Additional Information (Details) |  | 3 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Mar. 22, 2023 USD ($) $ / shares shares | Apr. 01, 2023 USD ($) $ / shares shares | Apr. 02, 2022 USD ($) shares | Dec. 31, 2022 $ / shares shares | Dec. 28, 2022 USD ($) shares | Jan. 01, 2022 shares
Shareholders Equity [Line Items] |  |  |  |  |  |
Common stock, shares authorized (in shares) |  | 10,000,000 |  | 10,000,000 |  |
Common stock, issued shares (in shares) |  | 3,614,937 |  | 2,827,410 |  |
Common stock, outstanding shares (in shares) |  | 3,614,937 |  | 2,827,410 |  |
Common stock par value | $ / shares |  | $ 0.001 |  | $ 0.001 |  |
Options outstanding |  | 120,000 |  | 110,000 |  | 117,500
Options granted |  | 10,000 |  |  |  |
Preferred stock outstanding |  | 222,588 |  | 222,588 |  |
Stock Options |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |
Share-based compensation expense | $ |  | $ 8,000,000 | $ 4,000,000 |  |  |
Unrecognized compensation expense, net of estimated forfeitures | $ |  | $ 5,400,000 |  |  |  |
Unrecognized compensation expense, net of estimated forfeitures, period for recognition |  | 2022-07 |  |  |  |
2016 Plan |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |
Options expiration date |  | Oct. 28, 2026 |  |  |  |
Options authorized for issuance |  | 800,000 |  |  |  |
Options outstanding |  | 100,000 |  | 90,000 |  |
2011 Plan |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |
Options outstanding |  | 20,000 |  | 20,000 |  |
Additional awards to be granted after adoption of 2016 plan |  | 0 |  |  |  |
Series A1 Convertible Preferred Stock |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |
Conversion of stock, shares issued |  | 0 |  |  |  |
Common Stock |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |
Preferred stock, conversion ratio |  | 0.05 |  |  |  |
Series A Preferred |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |
Preferred stock outstanding |  | 222,588 |  | 222,588 |  |
Series S Convertible Preferred Stock |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |
Preferred stock outstanding |  | 100,000 |  | 100,000 |  |
Company Tendered, Shares |  |  |  |  | 100,000 |
Series S Convertible Preferred Stock | Maximum |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |
Potential value | $ |  |  |  |  | $ 30,000,000 |
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 |  |  |  |
Securities Purchase Agreement |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |
Common stock offering shares | 361,000 |  |  |  |  |
Proceeds from sale of common stock | $ | $ 422,000 |  |  |  |  |
Common stock par value | $ / shares | $ 0.001 |  |  |  |  |
Common stock purchase price per share | $ / shares | $ 1.17 |  |  |  |  |

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