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SEGMENT INFORMATION (Details) - Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas - USD ($)
$ in Thousands
Dec. 31, 2020
Mar. 31, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]    
Intangible assets, net $ 384 $ 252
Property, plant and equipment, net 10,968 9,780
Investments in unlisted securities 261 11
Claims and advances 619 610
Operating lease asset 510 574
Total long-term assets 12,742 11,227
Geographic Distribution, Domestic [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Intangible assets, net 384 252
Property, plant and equipment, net 6,298 5,216
Investments in unlisted securities 249 0
Claims and advances 200 200
Operating lease asset 510 574
Total long-term assets 7,641 6,242
Geographic Distribution, Foreign [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Intangible assets, net 0 0
Property, plant and equipment, net 4,670 4,564
Investments in unlisted securities 12 11
Claims and advances 419 410
Operating lease asset 0 0
Total long-term assets $ 5,101 $ 4,985