v3.26.1
Note 9 - Segment Reporting - Disaggregation of Revenue (Details) - USD ($)
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Revenue $ 707,000 $ 622,000
Realized gain on sale of digital assets (52,000) 0
Segment net profit 470,000 249,000
Income before income tax expense 1,697,000 (665,000)
Bad debt recovery 0 (18,000)
Operating Segments [Member]    
Revenue 707,000 622,000
Labor and labor-related [1] 80,000 74,000
Cash digital asset transaction fees 6,000  
Stock-based expense 84,000  
Cost of Revenue 150,000 303,000
Advisory fees 15,000  
Unrealized gain on digital asset revaluation (2,198,000)  
Realized gain on sale of digital assets (52,000)  
Other segment items [2] 8,000 6,000
Segment net profit $ 2,614,000 $ 257,000
Segment net profit margin %
Bad debt recovery   $ (18,000)
Operating Segments [Member] | Digital Assets [Member]    
Revenue $ 86,000  
Operating Segments [Member] | Network Services [Member]    
Revenue 407,000 500,000
Operating Segments [Member] | Video Collaboration Service [Member]    
Revenue 212,000 120,000
Operating Segments [Member] | Professional and Other Services [Member]    
Revenue 2,000 2,000
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]    
Corporate expenses [3] 923,000 949,000
Interest income (6,000) (27,000)
Income before income tax expense 1,697,000 (665,000) [3]
Digital Assets [Member]    
Segment net profit 80,000  
Digital Assets [Member] | Operating Segments [Member]    
Revenue 86,000 0
Labor and labor-related [1] 0  
Cash digital asset transaction fees 6,000  
Stock-based expense 84,000  
Cost of Revenue 0  
Advisory fees 15,000  
Unrealized gain on digital asset revaluation (2,198,000)  
Realized gain on sale of digital assets (52,000)  
Other segment items [2] 0  
Segment net profit $ 2,231,000  
Segment net profit margin % 2594.00%  
Digital Assets [Member] | Operating Segments [Member] | Digital Assets [Member]    
Revenue $ 86,000  
Digital Assets [Member] | Operating Segments [Member] | Network Services [Member]    
Revenue 0  
Digital Assets [Member] | Operating Segments [Member] | Video Collaboration Service [Member]    
Revenue 0  
Digital Assets [Member] | Operating Segments [Member] | Professional and Other Services [Member]    
Revenue 0  
Managed Services [Member] | Operating Segments [Member]    
Revenue 422,000 508,000
Labor and labor-related [1] 73,000 68,000
Cash digital asset transaction fees 0  
Stock-based expense 0  
Cost of Revenue 150,000 303,000
Advisory fees 0  
Unrealized gain on digital asset revaluation 0  
Realized gain on sale of digital assets 0  
Other segment items [2] 0 1,000
Segment net profit $ 199,000 $ 136,000
Segment net profit margin % 47.00% 27.00%
Bad debt recovery   $ 0
Managed Services [Member] | Operating Segments [Member] | Digital Assets [Member]    
Revenue $ 0  
Managed Services [Member] | Operating Segments [Member] | Network Services [Member]    
Revenue 407,000 500,000
Managed Services [Member] | Operating Segments [Member] | Video Collaboration Service [Member]    
Revenue 13,000 6,000
Managed Services [Member] | Operating Segments [Member] | Professional and Other Services [Member]    
Revenue 2,000 2,000
Collaboration Products [Member] | Operating Segments [Member]    
Revenue 199,000 114,000
Labor and labor-related [1] 7,000 6,000
Cash digital asset transaction fees 0  
Stock-based expense 0  
Cost of Revenue 0 0
Advisory fees 0  
Unrealized gain on digital asset revaluation 0  
Realized gain on sale of digital assets 0  
Other segment items [2] 8,000 5,000
Segment net profit $ 184,000 $ 121,000
Segment net profit margin % 92.00% 106.00%
Bad debt recovery   $ (18,000)
Collaboration Products [Member] | Operating Segments [Member] | Digital Assets [Member]    
Revenue $ 0  
Collaboration Products [Member] | Operating Segments [Member] | Network Services [Member]    
Revenue 0 0
Collaboration Products [Member] | Operating Segments [Member] | Video Collaboration Service [Member]    
Revenue 199,000 114,000
Collaboration Products [Member] | Operating Segments [Member] | Professional and Other Services [Member]    
Revenue $ 0 $ 0
[1] Includes direct labor costs (including sales and marketing costs), employment taxes, employee benefits, workers’ compensation, and office expenses.
[2] Other segment items include other income and expenses, net, interest expense, certain professional services, and miscellaneous taxes and fees.
[3] Represents general and administrative costs, less the amounts allocated to the segments for labor and benefits, general liability insurance, professional services, property taxes, and interest income.