v3.25.2
Note 8 - Segment Reporting - Disaggregation of Revenue (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Revenue $ 592,000 $ 611,000 $ 1,214,000 $ 1,237,000
Segment profit 228,000 120,000 477,000 117,000
Unrealized gain 31,000 0 31,000 0
Interest income, net 47,000 44,000 74,000 78,000
Loss before income tax expense [1] (605,000) (974,000) (1,270,000) (2,110,000)
Bad debt recovery     (18,000) 0
Operating Segments [Member] | Managed Services [Member]        
Revenue 497,000 508,000 1,005,000 1,030,000
Labor and labor-related (1) [2] 65,000 30,000 133,000 62,000
Other segment items (2) [3] 0 4,000 1,000 0
Segment profit $ 137,000 $ 176,000 $ 273,000 $ 329,000
Segment profit margin % 28.00% 35.00% 27.00% 32.00%
Professional services   $ 0   $ 0
Bad debt recovery     $ 0  
Operating Segments [Member] | Managed Services [Member] | Network Services [Member]        
Revenue $ 481,000 483,000 980,000 987,000
Operating Segments [Member] | Managed Services [Member] | Video Collaboration Service [Member]        
Revenue 11,000 21,000 18,000 35,000
Operating Segments [Member] | Managed Services [Member] | Professional and Other Services [Member]        
Revenue 5,000 4,000 7,000 8,000
Operating Segments [Member] | Managed Services [Member] | Circuit and Network [Member]        
Cost of Revenue 295,000 298,000 598,000 636,000
Operating Segments [Member] | Managed Services [Member] | Inventory and Inventory-related [Member]        
Cost of Revenue   0   0
Operating Segments [Member] | Managed Services [Member] | Property and Office Expense [Member]        
Cost of Revenue       0
Operating Segments [Member] | Managed Services [Member] | Other Non-inventory [Member]        
Cost of Revenue       3,000
Operating Segments [Member] | Collaboration Products [Member]        
Revenue 93,000 103,000 207,000 207,000
Labor and labor-related (1) [2] 6,000 168,000 12,000 338,000
Other segment items (2) [3] 6,000 11,000 12,000 7,000
Segment profit $ 81,000 $ (178,000) $ 201,000 $ (426,000)
Segment profit margin % 87.00% (173.00%) 97.00% (206.00%)
Professional services   $ 62,000   $ 109,000
Bad debt recovery     $ (18,000)  
Operating Segments [Member] | Collaboration Products [Member] | Network Services [Member]        
Revenue $ 0 0 0 0
Operating Segments [Member] | Collaboration Products [Member] | Video Collaboration Service [Member]        
Revenue 93,000 103,000 207,000 207,000
Operating Segments [Member] | Collaboration Products [Member] | Professional and Other Services [Member]        
Revenue 0 0 0 0
Operating Segments [Member] | Collaboration Products [Member] | Circuit and Network [Member]        
Cost of Revenue 0 0 0 0
Operating Segments [Member] | Collaboration Products [Member] | Inventory and Inventory-related [Member]        
Cost of Revenue   40,000   149,000
Operating Segments [Member] | Collaboration Products [Member] | Property and Office Expense [Member]        
Cost of Revenue       30,000
Operating Segments [Member] | Collaboration Products [Member] | Other Non-inventory [Member]        
Cost of Revenue       0
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]        
Revenue 590,000 611,000 1,212,000 1,237,000
Labor and labor-related (1) [2] 71,000 198,000 145,000 400,000
Other segment items (2) [3] 6,000 15,000 13,000 7,000
Segment profit $ 218,000 $ (2,000) $ 474,000 $ (97,000)
Segment profit margin %
Corporate expenses (3) [4] $ 903,000 $ 985,000 $ 1,851,000 $ 2,030,000
Unrealized gain (31,000)   (31,000)  
Interest income, net (47,000) (44,000) [4] (74,000) (79,000) [4]
Loss before income tax expense (605,000) (974,000) [4] (1,270,000) (2,110,000) [4]
Professional services   62,000   109,000
Stock compensation [4]   31,000   62,000
Bad debt recovery     (18,000)  
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] | Network Services [Member]        
Revenue 481,000 483,000 980,000 987,000
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] | Video Collaboration Service [Member]        
Revenue 104,000 124,000 225,000 242,000
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] | Professional and Other Services [Member]        
Revenue 5,000 4,000 7,000 8,000
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] | Circuit and Network [Member]        
Cost of Revenue 295,000 298,000 598,000 636,000
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] | Inventory and Inventory-related [Member]        
Cost of Revenue   40,000   149,000
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] | Property and Office Expense [Member]        
Cost of Revenue       30,000
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] | Other Non-inventory [Member]        
Cost of Revenue       3,000
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] | Digital Assets [Member]        
Revenue 2,000 0 2,000 0
Digital asset revenue, net (2,000)   (2,000)  
Unrealized gain $ 31,000 $ 0 $ 31 $ 0
[1] Other income (expense) for our segments includes interest expense and non-operating income. Corporate other income includes interest income on our cash and cash equivalents.
[2] Includes direct labor costs (including sales and marketing costs), employment taxes, employee benefits, worker's compensation, and office expenses.
[3] Other segment items include other income and expenses, net, interest expense, certain professional services, and miscellaneous taxes and fees.
[4] 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.