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Business Segment and Geographic Reporting (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Business Segment and Geographic Reporting (Textual)        
Total revenues $ 19,123 $ 9,699 $ 44,189 $ 28,780
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 $ 5,700 $ 6,000 $ 17,000 $ 16,600