Annual report pursuant to Section 13 and 15(d)

Revenue Recognition (Details)

v3.20.1
Revenue Recognition (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Disaggregation of Revenue [Line Items]    
Revenue $ 29,956 $ 43,570
Product [Member]    
Disaggregation of Revenue [Line Items]    
Revenue 25,100 38,700
License and Service [Member]    
Disaggregation of Revenue [Line Items]    
Revenue 282 1,008
Service [Member]    
Disaggregation of Revenue [Line Items]    
Revenue $ 4,574 $ 3,862