Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Parent Equity Incentive Plan - Additional Information (Detail)

v3.8.0.1
Stock-Based Compensation - Parent Equity Incentive Plan - Additional Information (Detail) - Equity Incentive Plan [Member] - Cellectis (Parent) [Member] - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock-based compensation expense $ 108 $ 134
Stock Options and Warrants [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock-based compensation expense $ 108 $ 134