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Discontinued Operations (Details - Discontinued operations - income statement - Discontinued Operations [Member] - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Revenues $ 0 $ 1,315 $ 650 $ 4,371
Cost of revenues 0 371 315 1,294
Gross profit 0 944 335 3,077
Operating costs and expenses:        
General and administrative 0 116 560 438
Sales and marketing expenses 0 26 17 78
Depreciation and amortization 0 42 28 126
Total operating costs and expenses 0 184 605 642
Operating income (loss) 0 760 (270) 2,435
Interest income 0 5 8 22
Other income 0 0 8,974 0
Income before taxes 0 765 8,712 2,457
Income tax expense 0 361 2,796 719
Net income from continuing discontinued $ 0 $ 404 $ 5,916 $ 1,738