v3.26.1
Note 9 - Segment Reporting - Disaggregation of Revenue (Details) - USD ($)
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Revenue $ 2,437,000 $ 2,378,000
Stock-based expense 62,000 0
Bad debt (recovery) expense (18,000) 2,000
Segment profit (loss) 1,014,000 331,000
Loss before income tax expense (6,353,000) (4,033,000)
Research and development 10,000 155,000
Operating Segments [Member]    
Revenue 2,437,000 2,378,000
Labor and Related Expense [1] 280,000 682,000
Property and office expense 21,000  
Cash digital asset transaction fees 16,000  
Non-cash digital asset transaction fees 8,000  
Stock-based expense 169,000  
Cost of Revenue 1,123,000  
Advisory fees 40,000  
Unrealized loss 3,519,000  
Bad debt (recovery) expense (18,000) 2,000
Other segment items [2] 4,000  
Segment profit (loss) $ (2,725,000) $ 5,000
Segment margin
Severance   $ 46,000
Research and development   145,000
Operating Segments [Member] | Digital Assets [Member]    
Revenue $ 186,000  
Operating Segments [Member] | Network Services [Member]    
Revenue 1,898,000 1,990,000
Operating Segments [Member] | Video Collaboration Service [Member]    
Revenue 338,000 372,000
Operating Segments [Member] | Professional and Other Services [Member]    
Revenue 15,000 16,000
Operating Segments [Member] | Circuit and Network [Member]    
Cost of Revenue   1,202,000
Operating Segments [Member] | Inventory and Inventory-related [Member]    
Cost of Revenue   273,000
Operating Segments [Member] | Other Non-inventory [Member]    
Cost of Revenue   23,000
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]    
Stock-based expense [3]   62,000
Corporate expenses [3] 3,756,000 4,067,000
Interest income (128,000) (151,000) [3]
Loss before income tax expense (6,353,000) (4,033,000) [3]
Severance [3]   60,000
Digital Assets [Member]    
Segment profit (loss) 162,000  
Digital Assets [Member] | Operating Segments [Member]    
Revenue 186,000 0
Labor and Related Expense [1] 0  
Property and office expense 0  
Cash digital asset transaction fees 16,000  
Non-cash digital asset transaction fees 8,000  
Stock-based expense 169,000  
Cost of Revenue 0  
Advisory fees 40,000  
Unrealized loss 3,519,000  
Bad debt (recovery) expense 0  
Other segment items [2] 0  
Segment profit (loss) $ (3,566,000)  
Segment margin (1917.00%)  
Digital Assets [Member] | Operating Segments [Member] | Digital Assets [Member]    
Revenue $ 186,000  
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 1,957,000 2,062,000
Labor and Related Expense [1] 261,000 132,000
Property and office expense 0  
Cash digital asset transaction fees 0  
Non-cash digital asset transaction fees 0  
Stock-based expense 0  
Cost of Revenue 1,123,000  
Advisory fees 0  
Unrealized loss 0  
Bad debt (recovery) expense 0 0
Other segment items [2] 0  
Segment profit (loss) $ 573,000 $ 724,000
Segment margin 29.00% 35.00%
Severance   $ 0
Research and development   0
Managed Services [Member] | Operating Segments [Member] | Digital Assets [Member]    
Revenue $ 0  
Managed Services [Member] | Operating Segments [Member] | Network Services [Member]    
Revenue 1,898,000 1,990,000
Managed Services [Member] | Operating Segments [Member] | Video Collaboration Service [Member]    
Revenue 44,000 56,000
Managed Services [Member] | Operating Segments [Member] | Professional and Other Services [Member]    
Revenue 15,000 16,000
Managed Services [Member] | Operating Segments [Member] | Circuit and Network [Member]    
Cost of Revenue   1,202,000
Managed Services [Member] | Operating Segments [Member] | Inventory and Inventory-related [Member]    
Cost of Revenue   0
Managed Services [Member] | Operating Segments [Member] | Other Non-inventory [Member]    
Cost of Revenue   4,000
Collaboration Products [Member] | Operating Segments [Member]    
Revenue 294,000 316,000
Labor and Related Expense [1] 19,000 550,000
Property and office expense 21,000  
Cash digital asset transaction fees 0  
Non-cash digital asset transaction fees 0  
Stock-based expense 0  
Cost of Revenue 0  
Advisory fees 0  
Unrealized loss 0  
Bad debt (recovery) expense (18,000) 2,000
Other segment items [2] 4,000  
Segment profit (loss) $ 268,000 $ (719,000)
Segment margin 91.00% (228.00%)
Severance   $ 46,000
Research and development   145,000
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 294,000 316,000
Collaboration Products [Member] | Operating Segments [Member] | Professional and Other Services [Member]    
Revenue $ 0 0
Collaboration Products [Member] | Operating Segments [Member] | Circuit and Network [Member]    
Cost of Revenue   0
Collaboration Products [Member] | Operating Segments [Member] | Inventory and Inventory-related [Member]    
Cost of Revenue   273,000
Collaboration Products [Member] | Operating Segments [Member] | Other Non-inventory [Member]    
Cost of Revenue   $ 19,000
[1] Includes direct labor costs (including sales and marketing costs), employment taxes, employee benefits, workers' compensation, and office expenses. For the year ended December 31, 2024, this also includes $46,000 of severance costs.
[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. For the year ended December 31, 2024, this also includes severance costs of $59,000.