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Cryptocurrency Assets (Details) - USD ($)
$ in Thousands
Jan. 31, 2023
Jan. 31, 2022
Current Assets Fmv $ 4 $ 3,152
BTC [Member]    
Current Assets Fmv 4 272
ETH [Member]    
Current Assets Fmv 0 1
HEX [Member]    
Current Assets Fmv $ 0 $ 2,879