Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Schedule of Stock-based Compensation Expense Included in Operating Expenses (Details)

v3.22.1
Stock-Based Compensation - Schedule of Stock-based Compensation Expense Included in Operating Expenses (Details) - Plans [Member] - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]    
Stock-based compensation in operating expenses $ 162 $ 1,072
Selling, General and Administrative [Member]    
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]    
Stock-based compensation in operating expenses 113 943
Research and Development [Member]    
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]    
Stock-based compensation in operating expenses $ 49 $ 129