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Stock Based Compensation - Narrative (Details)
3 Months Ended 12 Months Ended
Jan. 03, 2023
Aug. 18, 2021
USD ($)
$ / shares
shares
Jun. 28, 2021
USD ($)
Oct. 01, 2019
shares
Dec. 31, 2022
USD ($)
shares
Dec. 31, 2022
USD ($)
$ / shares
shares
Dec. 31, 2021
USD ($)
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of options granted (in shares) | shares             20,000
Outstanding weighted average exercise price, exchanged for oblong industries stock options (in dollars per share) | $ / shares             $ 48.75
Intrinsic value of exercisable options         $ 0 $ 0  
Stock option compensation expense, forfeiture           85,000  
Unrecognized stock-based compensation expense for stock options         185,000 $ 185,000  
Forfeited in period (in shares) | shares           10,000  
Subsequent Event              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Stockholders' equity note, stock split, conversion ratio 0.06667            
General and Administrative Expense              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Stock option compensation expense             $ 390,000
Series D Preferred Stock              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Forfeited in period (in shares) | shares             81
Outstanding stock options              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Stock option compensation expense           $ 61,000 $ 126,000
Stock option compensation expense, gross           146,000  
Stock option compensation expense, forfeiture           $ 85,000  
Period of recognition           1 year 6 months  
Outstanding stock options | General and Administrative Expense              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Stock option compensation expense         125,000    
Outstanding stock options | Research and Development Expense              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Stock option compensation expense         $ (64,000)    
Outstanding stock options | Share-based Payment Arrangement, Employee              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of options granted (in shares) | shares           0  
Exercise period     10 years        
Vesting period     3 years        
Share-based compensation vested in period, fair Value     $ 744,000        
Outstanding stock options | Share-based Payment Arrangement, Employee | Tranche One              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting percentage           33.00%  
Outstanding stock options | Share-based Payment Arrangement, Employee | Tranche Two              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting percentage           33.00%  
Outstanding stock options | Share-based Payment Arrangement, Employee | Tranche Three              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting percentage           33.00%  
Unvested restricted stock awards              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period           10 years  
Unvested restricted shares outstanding (in shares) | shares         42 42 42
Granted, weighted average grant price (in dollars per share) | $ / shares           $ 235.87 $ 235.87
Award service period           5 years  
Unvested restricted stock awards | Series D Preferred Stock              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period       2 years      
Stock option compensation expense           $ 0 $ 33,000
Unvested restricted shares outstanding (in shares) | shares         0 0  
Unrecognized stock-based compensation expense for other than options         $ 0 $ 0  
Issuance of stock on vested restricted stock units (in shares) | shares       49,967      
Forfeited in period (in shares) | shares           81 28,618
Unvested restricted stock awards | Series D Preferred Stock | Research and Development Expense              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Stock option compensation expense           $ 0 $ 17,000
RSUs              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Unvested restricted shares outstanding (in shares) | shares         0 0 0
Unrecognized stock-based compensation expense for other than options         $ 0 $ 0  
Stock-based compensation arrangement, vested in period, remain outstanding (in shares) | shares           1,929 1,929
RSUs | Share-based Payment Arrangement, Employee              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Granted, restricted shares (in shares) | shares           0  
Share-based compensation arrangement by share-based payment award, fair value in period   $ 438,000          
RSUs | Nonemployee              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Granted, weighted average grant price (in dollars per share) | $ / shares   $ 32.85          
Granted, restricted shares (in shares) | shares   13,334          
2019 Equity Incentive Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of shares available for grant (in shares) | shares         177,567 177,567