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Segment Information (Details) - Schedule of geographical segment - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Mar. 31, 2021
Revenue from contracts with customers:      
Total revenue from contracts with customers $ 10,242 $ 12,365 $ 9,168
Property, plant and equipment, net:      
Total property, plant and equipment, net 401 643  
Hong Kong and China [Member]      
Revenue from contracts with customers:      
Total revenue from contracts with customers 1,510 2,105 1,554
Property, plant and equipment, net:      
Total property, plant and equipment, net 110 128  
Europe [Member]      
Revenue from contracts with customers:      
Total revenue from contracts with customers 8,268 8,761 7,269
Other Asian countries [Member]      
Revenue from contracts with customers:      
Total revenue from contracts with customers 27 76 37
North America [Member]      
Revenue from contracts with customers:      
Total revenue from contracts with customers 437 1,423 $ 308
Myanmar [Member]      
Property, plant and equipment, net:      
Total property, plant and equipment, net $ 291 $ 515