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Business Segment and Geographic Reporting (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Business Segment and Geographic Reporting (Textual)    
Total revenues $ 38,659 $ 33,701
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 $ 23,100 $ 13,700