Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Additional Information (Detail)

v3.7.0.1
Stock-Based Compensation - Additional Information (Detail) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Existing Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation expense $ 0 $ 0 $ 0 $ 0
Omnibus Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation expense 443,000   443,000  
Omnibus Plan [Member] | Nonemployee Restricted Stock Units [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation expense 8,000   8,000  
Omnibus Plan [Member] | Employee Stock Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation expense 0   0  
Cellectis (Parent) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation expense 115,000 277,000 249,000 595,000
Cellectis (Parent) [Member] | Nonemployee Restricted Stock Units [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Dividends $ 69,000   $ 69,000  
Cellectis (Parent) [Member] | Nonemployee Stock Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Dividends   $ 0   $ 0