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Concentrations of Credit Risk and Major Customers (Details) - Schedule of revenue by major customers by reporting segments
 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2019
Revenue, Major Customer [Line Items]      
Accounts Receivable ,Percentage 72.50% 69.00% 76.90%
Customer A [Member]      
Revenue, Major Customer [Line Items]      
Accounts Receivable ,Percentage [1] 46.60% 48.20% 47.70%
Customer B [Member]      
Revenue, Major Customer [Line Items]      
Accounts Receivable ,Percentage [1] 25.90% 20.80% 18.00%
Customer C [Member]      
Revenue, Major Customer [Line Items]      
Accounts Receivable ,Percentage [2] [2] 11.20% [3]
[1] Sales to this customer were reported in both of the Metal Stamping and Mechanical OEM and Electric OEM operating segments.
[2] Comprised less than 10% of net revenue for the respective year end.
[3] Sales to this customer were reported in the Electric OEM operating segment.