Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Narrative (Details)

v3.23.3
Stock-Based Compensation - Narrative (Details) - USD ($)
 1 Months Ended 9 Months Ended 12 Months Ended
Sep. 27, 2023
Jan. 31, 2023
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2010
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Maximum number of shares that may be issued (in shares)         59,414
Weighted average fair value of options granted (in usd per share)     $ 1.01 $ 27.02  
Unamortized compensation expense related to options     $ 1,000,000    
Expected weighted average period of recognition of compensation expense     2 years 3 months 29 days    
Aggregate intrinsic value of options outstanding     $ 1,184    
Aggregate intrinsic value of options exercisable     $ 1,184    
Share price (in usd per share)     $ 0.57    
Employee Stock Options          
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Vesting period     4 years    
Award service period     3 years    
Restricted Stock          
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Expected weighted average period of recognition of compensation expense     2 years 9 months 14 days    
Unamortized compensation expense related to restricted stock     $ 400,000    
Tranche One          
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage     33.00%    
Tranche One | Employee Stock Options          
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Vesting period     1 year    
Tranche One | Restricted Stock          
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Vesting period     1 year    
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage     33.00%    
Tranche Two          
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage     67.00%    
Tranche Two | Employee Stock Options          
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Vesting period     24 months    
Tranche Two | Restricted Stock          
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Vesting period     24 months    
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage     67.00%    
Holders Owning More Than Ten Percentage Voting Rights          
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Vesting period         5 years
Holders Owning More Than Ten Percentage Voting Rights | Minimum          
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Percentage of exercise price         110.00%
Holders Owning More Than Ten Percentage Voting Rights | Maximum          
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Vesting period         10 years
2014 Plan          
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Maximum number of shares authorized (in shares)     1,297,363    
Number of shares available for awards (in shares)     165,300    
2014 Plan | Employee Stock Options          
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Additional shares authorized (in shares) 1,000,000 76,632      
ESPP          
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Maximum number of shares authorized (in shares)     284    
Number of shares available for awards (in shares)     191 191