Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition (Details 2)

v3.10.0.1
Revenue Recognition (Details 2) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Disaggregation of Revenue [Line Items]        
Revenue $ 10,106 $ 17,232 $ 23,143 $ 33,806
Product [Member]        
Disaggregation of Revenue [Line Items]        
Revenue 9,041 15,613 20,830 30,397
License and Service [Member]        
Disaggregation of Revenue [Line Items]        
Revenue 158 484 574 1,245
Service [Member]        
Disaggregation of Revenue [Line Items]        
Revenue $ 907 $ 1,135 $ 1,739 $ 2,164