Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Additional Information (Detail)

v3.22.4
Stockholders' Equity - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Oct. 03, 2022
Feb. 28, 2022
Sep. 21, 2021
Oct. 20, 2020
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Equity, Class of Treasury Stock [Line Items]              
Preferred stock share authorized         50,000,000    
Preferred stock share par value         $ 0.0001    
Common stock, issued and sold   3,880,000          
Net proceeds from issuance of common stock and exercise of overallotment   $ 10,000          
After deduction of underwriting discounts and estimated other offering expenses   $ 900          
Proceeds from common stock issuance         $ 11,538 $ 4,380 $ 15,000
ATM Facility [Member]              
Equity, Class of Treasury Stock [Line Items]              
Common stock, issued and sold 2,000,000            
After deduction of underwriting discounts and estimated other offering expenses $ 100            
Common stock shares subscribed but not issued 15,661,000            
ATM Facility [Member] | Maximum [Member]              
Equity, Class of Treasury Stock [Line Items]              
Common stock shares subscribed but not issued 15,661,000            
Pre Funded Warrants [Member]              
Equity, Class of Treasury Stock [Line Items]              
Class of warrant or right, exercise price of warrants or rights   $ 0.0001     $ 0    
Pre Funded Warrants [Member] | Maximum [Member]              
Equity, Class of Treasury Stock [Line Items]              
Warrants issued (in shares)   3,880,000          
Common Warrants [Member] | Maximum [Member]              
Equity, Class of Treasury Stock [Line Items]              
Warrants issued (in shares)   7,760,000          
Common Stock Warrants [Member]              
Equity, Class of Treasury Stock [Line Items]              
Common Stock, Voting Rights   4.99          
Class of warrant or right, exercise price of warrants or rights   $ 1.41     $ 1.41    
Common Stock Warrants [Member] | Maximum [Member]              
Equity, Class of Treasury Stock [Line Items]              
Date from which Warrants or Rights Exercisable   Aug. 23, 2027          
Common Stock Warrants [Member] | Minimum [Member]              
Equity, Class of Treasury Stock [Line Items]              
Date from which Warrants or Rights Exercisable   Aug. 23, 2022          
Common Stock Warrants [Member] | ATM Facility [Member]              
Equity, Class of Treasury Stock [Line Items]              
Common stock, issued and sold     1,400,000        
Net proceeds from issuance of common stock and exercise of overallotment     $ 4,100        
Follow-on Public Offering [Member]              
Equity, Class of Treasury Stock [Line Items]              
Common stock, issued and sold   3,880,000   3,750,000      
Common stock issued price per share   $ 1.41   $ 4      
Net proceeds from issuance of common stock and exercise of overallotment   $ 10,000   $ 14,000     $ 14,037
Underwriting discounts and commissions       $ 1,000      
After deduction of underwriting discounts and estimated other offering expenses   $ 900          
Follow-on Public Offering [Member] | Pre Funded Warrants [Member]              
Equity, Class of Treasury Stock [Line Items]              
Common stock issued price per share   $ 1.4099          
Follow-on Public Offering [Member] | Pre Funded Warrants [Member] | Maximum [Member]              
Equity, Class of Treasury Stock [Line Items]              
Warrants issued (in shares)   3,880,000          
Follow-on Public Offering [Member] | Common Warrants [Member] | Maximum [Member]              
Equity, Class of Treasury Stock [Line Items]              
Warrants issued (in shares)   7,760,000          
Follow-on Public Offering [Member] | Cellectis [Member]              
Equity, Class of Treasury Stock [Line Items]              
Common stock, issued and sold       1,250,000      
Net proceeds from issuance of common stock and exercise of overallotment       $ 5,000      
Proceeds from common stock issuance       $ 14,000