v3.26.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($)
$ in Thousands
 5 Months Ended 12 Months Ended 18 Months Ended 22 Months Ended
Jan. 01, 2024
Oct. 31, 2023
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Jul. 31, 2025
Jul. 31, 2025
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES              
Cash and cash equivalents, maturities     three months        
Short-term investment     $ 0 $ 0      
Accounting Standards Update [Extensible Enumeration] Accounting Standards Update 2023-08 [Member]            
Retained earnings     (591,790) (557,913)      
Impairment of intangible assets     1,405 0 $ 0    
Impairment of property and equipment     8,764        
Impairment of long-term investments     0 132 1,408    
Derivative assets     $ 404 $ 859      
Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration]     Prepaid Expense and Other Assets, Current Prepaid Expense and Other Assets, Current      
Changes in fair value of derivative instruments     $ 21 $ 311 (35)    
Cost of data center services     23,697 16,877 21,834    
Cost of cryptocurrency mining before inter-segment elimination     7,587 14,263 19,216    
Cost of cryptocurrency mining after inter-segment elimination     19 1,705 7,273    
Depreciation fees     12,314 10,149 9,858    
Amortization of intangible assets     3,878 1,388 1,258    
Impairment loss for right-of-use assets     0 $ 0 0    
Several collar arrangements with a third party              
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES              
Derivative term of contract   1 month          
Cumulative-effect adjustment amount              
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES              
Cryptocurrency assets from continuing operations $ 854            
Cryptocurrency assets from discontinued operations 39            
Accounting Standards Update [Extensible Enumeration]       Accounting Standards Update 2023-08 [Member]      
Retained earnings $ 893            
Cost of revenue              
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES              
Depreciation fees     9,367 $ 9,973 9,737    
Amortization of intangible assets     706 1,382 1,211    
Minimum | Ethereum Accumulator Agreements With A Third Party              
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES              
Derivative term of contract           3 months 1 month
Maximum | Ethereum Accumulator Agreements With A Third Party              
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES              
Derivative term of contract           6 months 12 months
Accrued expenses and other current liabilities              
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES              
Advance from customers balance     1,197 1,218      
Alpha Data Center PLC              
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES              
Impairment of intangible assets     1,405 0 0    
Ethiopia data center              
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES              
Impairment of property and equipment     $ 8,764 $ 0 $ 0