Quarterly report pursuant to Section 13 or 15(d)

Going Concern - Additional Information (Details)

v3.22.1
Going Concern - Additional Information (Details) - USD ($)
3 Months Ended
Feb. 23, 2022
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Net loss   $ 5,619,000 $ 10,028,000      
Net cash used by operating activities   6,404,000 9,417,000      
Cash, cash equivalents, and restricted cash   17,883,000 $ 17,376,000   $ 14,421,000 $ 18,289,000
Restricted cash   499,000     499,000  
Current liabilities   9,520,000     $ 4,854,000  
Common stock, issued and sold 3,880,000          
Issuance of common stock $ 10,000,000.0          
After deduction of underwriting discounts and estimated other offering expenses $ 900,000          
Shelf Registration Statement [Member] | ATM Facility [Member]            
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Minimum public float   $ 75,000,000        
Maximum [Member] | Cellectis [Member]            
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Threshold percentage of ownership in outstanding common stock to enact indemnification agreement   50.00%        
Pre-funded Warrants [Member] | Maximum [Member]            
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Warrants issued (in shares) 3,880,000          
Common Warrants [Member] | Maximum [Member]            
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Warrants issued (in shares) 7,760,000          
Forecast [Member]            
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Cash expense for separation-related payments       $ 500,000    
Equipment [Member]            
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Restricted cash   $ 600,000