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Stock Incentive Plan - Additional information (Details)
$ in Thousands
1 Months Ended 3 Months Ended
Jan. 01, 2021
shares
Oct. 31, 2015
shares
Mar. 31, 2021
USD ($)
item
shares
Mar. 31, 2020
USD ($)
shares
Sep. 30, 2014
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Total unrecognized compensation cost related to non-vested stock options | $     $ 132    
Weighted average period of unvested stock awards     8 months 15 days    
Stock-based compensation expense | $     $ 589 $ 67  
Number of stock option granted     0 0  
Aggregate of shares granted fully vested stock awards     5,400    
Number of non-employees | item     1    
Fair value of stock awards on grant date | $     $ 537    
2014 Stock Incentive Plan | Options          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of shares available for future stock-based compensation grants     1,523,508    
Maximum number of shares issued pursuant to awards granted under plan     3,312,882   450,000
Maximum term of stock option grants     10 years    
Number of share reserve increased 268,017 1,500,000      
Percentage of shares reserve increased 4.00% 4.00%      
Total number of unvested shares     3,312,882    
2007 Key Person Stock Option Plan | Options          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of shares available for future stock-based compensation grants     0