Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation - Additional Information (Details)

v3.21.1
Stock-based Compensation - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percent of employee match     50.00%
Matching contribution to 401(k) plan $ 152 $ 155  
Stock options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation expense $ 1,869    
Unrecognized compensation expense, period of recognition 1 year 10 months 2 days    
RSU      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Right to receive stock (in shares) 1    
Unrecognized compensation expense $ 1,935    
Unrecognized compensation expense, period of recognition 2 years 8 months 1 day    
Equity Incentive Plan 2014      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares authorized for grant (in shares) 1,974,000    
Shares available for grant (in shares) 937,000    
Common Stock      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares issued in employee benefit plan (in shares) 26,000 26,000  
Additional Paid-in Capital      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Matching contribution to 401(k) plan $ 152 $ 155