Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Narrative (Details)

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Stockholders' Equity - Narrative (Details)
$ / shares in Units, $ in Thousands
 12 Months Ended
Jul. 10, 2023
shares
Jan. 03, 2023
shares
Jan. 01, 2024
USD ($)
store
$ / shares
shares
Jan. 02, 2023
USD ($)
$ / shares
shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Common stock, shares authorized (in shares)     100,000,000 100,000,000
Common stock, par value (in USD per share) | $ / shares     $ 0.0001 $ 0.0001
Common stock, shares, outstanding (in shares)     26,832,691 22,257,772
Preferred stock, shares authorized (in shares)     10,000,000 10,000,000
Preferred stock, par value (in USD per share) | $ / shares     $ 0.0001 $ 0.0001
Preferred stock, shares outstanding (in shares)     2,120,000 2,120,000
Warrants outstanding (in shares)     15,063,800 15,063,800
Number of Shares that warrants exercisable for     1 1
Warrants exercise price (in dollars per share) | $ / shares     $ 11.50 $ 11.50
Warrants exercisable period     30 days  
Number of shares issued under purchase option (in shares)     750,000  
Shares purchase price, per share (in Dollars per share) | $ / shares     $ 10.00  
Share-based compensation expense | $     $ 5,612 $ 10,239
2020 Omnibus Equity Incentive Plan        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Aggregate number of shares to be issued under stock incentive plan (in shares)       2,000,000
Stock option expiration period     10 years  
Annual increase in number of shares available for issuance     5.00%  
Inducement Awards Plan        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Vesting period     5 years  
Share-based compensation expense | $     $ 200 $ 0
CEO Awards        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Number of shares purchased by CEO (in shares) 63,500      
Public Warrants        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Warrants outstanding (in shares)     11,468,800 11,468,800
Warrants exercise price (in dollars per share) | $ / shares     $ 0.01  
Prior written notice of redemption, period     30 days  
Stock price trigger for redemption (in dollars per share) | $ / shares     $ 18.00  
Days included in redemption trading day period | store     30  
Private Placement        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Warrants outstanding (in shares)     3,000,000 3,000,000
Private Warrants        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Warrants outstanding (in shares)     445,000 445,000
Warrants exercise price (in dollars per share) | $ / shares     $ 0.05 $ 0.05
Working Capital Warrants        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Warrants outstanding (in shares)     150,000 150,000
Restricted Shares        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Vesting period     4 years  
Service Condition        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Share-based compensation expense | $     $ 1,100 $ 2,100
Performance Condition        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Share-based compensation expense | $     2,900 3,700
Performance Condition | CEO Awards        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Common shares available for future grants (in shares) 500,000      
Shares expected to vest annually (in shares) 100,000      
Performance Condition | CFO Awards        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Common shares available for future grants (in shares) 200,000      
Shares expected to vest annually (in shares) 40,000      
Market Condition        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Plan modification cost | $       200
Market Condition | 2020 Omnibus Equity Incentive Plan        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Share-based compensation expense | $     (100) $ 600
Unrestricted Stock Award (RSAs)        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Employee benefits and share-based compensation | $     1,500  
Unrestricted Stock Award (RSAs) | Consultant Principal        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Shares granted (in shares)   38,000    
Unrestricted Stock Award (RSAs) | Executive Officer        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Shares granted (in shares)   1,141,750    
Restricted Stock Units (RSUs)        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Unrecognized compensation cost | $     $ 8,500  
Unrecognized stock-based compensation expense, weighted-average recognition period     2 years 3 months 18 days  
Restricted Stock Units (RSUs) | Inducement Awards Plan        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Unrecognized compensation cost | $     $ 1,900  
Unrecognized stock-based compensation expense, weighted-average recognition period     3 years 2 months 12 days  
Restricted Stock Units (RSUs) | CEO Awards        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Common shares available for future grants (in shares) 500,000      
Shares expected to vest annually (in shares) 100,000      
Restricted Stock Units (RSUs) | CFO Awards        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Common shares available for future grants (in shares) 200,000      
Shares expected to vest annually (in shares) 40,000