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Trade Payables (Details) - USD ($)
Jun. 30, 2020
Mar. 31, 2020
Trade payables $ 38,879,000 $ 8,398,000
Margin lending payable    
Trade payables 36,876,000 6,101,000
Trade payable for securities purchased    
Trade payables 256,000 1,860,000
Payables to suppliers of goods and services    
Trade payables 1,023,000 202,000
Coupons Payable    
Trade payables 718,000 0
Other    
Trade payables $ 6,000 $ 235,000