Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Compensation Expense (Details)

v3.19.3
Stock-Based Compensation - Compensation Expense (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Stock-Based Compensation        
Stock-based compensation expense $ 104 $ 224 $ 366 $ 451
Cost of goods sold        
Stock-Based Compensation        
Stock-based compensation expense 18 13 36 25
Research and development        
Stock-Based Compensation        
Stock-based compensation expense 10 6 20 13
Selling, general and administrative        
Stock-Based Compensation        
Stock-based compensation expense $ 76 $ 205 $ 310 $ 413