v3.26.1
Note 19 - Segment Reporting - Summary of Segment Reporting Information (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
Revenues $ 383 $ 1,652    
Cost of revenues 356 1,492    
Total operating expenses (52) 739    
Depreciation and amortization expenses included in cost of revenues and operating expenses 66 23    
Operating income/(loss) 79 (579)    
Expenditure for long-term assets 0 637    
Net loss 126 (530)    
Total Assets 9,463 9,541 $ 9,678 $ 9,686
Operating Segments [Member] | Internet Ad [Member]        
Revenues 284 1,019    
Cost of revenues 266 919    
Total operating expenses (261) 14    
Depreciation and amortization expenses included in cost of revenues and operating expenses 3 7    
Operating income/(loss) 279 86    
Expenditure for long-term assets 0 0    
Net loss 279 83    
Total Assets 8,663 8,184 8,553 7,627
Operating Segments [Member] | IP Services [Member]        
Revenues 61 18    
Cost of revenues 59 13    
Total operating expenses 0 0    
Depreciation and amortization expenses included in cost of revenues and operating expenses 59 13    
Operating income/(loss) 2 5    
Expenditure for long-term assets 0 600    
Net loss 5 4    
Total Assets 458 712 516 0
Operating Segments [Member] | AI Service [Member]        
Revenues 38      
Cost of revenues 31      
Depreciation and amortization expenses included in cost of revenues and operating expenses 0      
Operating income/(loss) 7      
Expenditure for long-term assets 0      
Net loss 7      
Total Assets 38   0  
Operating Segments [Member] | Blockchain Technology [Member]        
Revenues 0 615    
Cost of revenues 0 560    
Total operating expenses 0 0    
Depreciation and amortization expenses included in cost of revenues and operating expenses 0 0    
Operating income/(loss) 0 55    
Expenditure for long-term assets 0 0    
Net loss 0 55    
Total Assets 55 205 55 0
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]        
Revenues 0 0    
Cost of revenues 0 0    
Total operating expenses 209 725    
Depreciation and amortization expenses included in cost of revenues and operating expenses 4 3    
Operating income/(loss) (209) (725)    
Expenditure for long-term assets 0 37    
Net loss (165) (672)    
Total Assets 34,021 33,793 34,324 34,405
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment [Member]        
Revenues 0 0    
Cost of revenues 0 0    
Total operating expenses 0 0    
Depreciation and amortization expenses included in cost of revenues and operating expenses 0 0    
Operating income/(loss) 0 0    
Expenditure for long-term assets 0 0    
Net loss 0 0    
Total Assets $ (33,772) $ (33,353) $ (33,770) $ (32,346)