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Segment reporting (Tables)
6 Months Ended
Jun. 30, 2023
Segment Reporting [Abstract]  
Schedule of segment information
Segment information for the periods presented is as follows:
Three months ended June 30, 2023Six months ended June 30, 2023
Critical
Metals
Data
Processing
Energy
Storage
TotalCritical
Metals
Data
Processing
Energy
Storage
Total
Revenue$— $42 $1,272 $1,314 $— $721 $1,272 $1,993 
Intersegment revenues— 15 — 15 — 63 — 63 
Loss (income) from operations44,648 746 1,991 47,385 80,807 1,145 4,022 85,974 
Segment Assets293,234 4,253 12,274 309,761 293,234 4,253 12,274 309,761 
Three months ended June 30, 2022Six months ended June 30, 2022
Critical
Metals
Data
Processing
Energy
Storage
TotalCritical
Metals
Data
Processing
Energy
Storage
Total
Revenue$— $229 $— $229 $— $6,991 $— $6,991 
Intersegment revenues— 96 — 96 — 139 — 139 
Loss (income) from operations27,103 953 1,630 29,686 47,883 (4,596)3,605 46,892 
Segment Assets309,574 7,259 24,161 340,994 309,574 7,259 24,161 340,994