Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Stock Based Compensation Expense (Details)

v3.21.1
Stockholders' Equity - Stock Based Compensation Expense (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Stock-Based Compensation    
Stock-based compensation expense $ 937 $ 913
Cost of goods sold    
Stock-Based Compensation    
Stock-based compensation expense 83 69
Research and development    
Stock-Based Compensation    
Stock-based compensation expense 41 44
Selling, general and administrative    
Stock-Based Compensation    
Stock-based compensation expense $ 813 $ 800