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Business Segment and Geographic Reporting (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Business Segment and Geographic Reporting (Textual)        
Total revenues $ 14,559 $ 9,583 $ 25,066 $ 19,081
One External Customer [Member] | Sales Revenue, Net [Member]        
Business Segment and Geographic Reporting (Textual)        
Concentration risk, percentage     10.00%  
OEM [Member]        
Business Segment and Geographic Reporting (Textual)        
Total revenues     $ 11,200 $ 5,600