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Note 8 - Segment Reporting - Disaggregation of Revenue (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Revenue |  | $ 601,000 |  | $ 578,000 |  | $ 1,815,000 |  | $ 1,815,000 |
Segment profit |  | 244,000 |  | 79,000 |  | 720,000 |  | 196,000 |
Interest income, net | [1] | 29,000 |  | 32,000 |  | 104,000 |  | 110,000 |
Loss before income tax expense |  | (2,290,000) |  | (1,040,000) |  | (3,560,000) |  | (3,150,000) |
Severance |  |  |  | 46 |  |  |  | 46 |
Bad debt recovery |  |  |  |  |  | (18,000) |  | 0 |
Crypto Asset, Unrealized Gain (Loss), Nonoperating |  | (1,517,000) |  | 0 |  | (1,486,000) |  | 0 |
Operating Segments [Member] |  |  |  |  |  |  |  |  |
Revenue |  | 504,000 |  | 578,000 |  | 1,716,000 |  | 1,815,000 |
Labor and labor-related | [2] | 65,000 |  | 209,000 |  | 210,000 |  | 609,000 |
Cost of Revenue |  | 281,000 |  | 261,000 |  | 898,000 |  | 897,000 |
Other segment items | [3] | 6,000 |  | 15,000 |  | 1,000 |  | (12,000) |
Segment profit |  | $ 152,000 |  | $ (24,000) |  | $ 625,000 |  | $ (120,000) |
Segment profit margin % |  |  |  |  |  |  |  |  |
Operating Segments [Member] | Network Services [Member] |  |  |  |  |  |  |  |  |
Revenue |  | $ 477,000 |  | $ 502,000 |  | $ 1,457,000 |  | $ 1,489,000 |
Operating Segments [Member] | Video Collaboration Service [Member] |  |  |  |  |  |  |  |  |
Revenue |  | 24,000 |  | 74,000 |  | 249,000 |  | 316,000 |
Operating Segments [Member] | Professional and Other Services [Member] |  |  |  |  |  |  |  |  |
Revenue |  | 3,000 |  | 2,000 |  | 10,000 |  | 10,000 |
Operating Segments [Member] | Managed Services [Member] |  |  |  |  |  |  |  |  |
Revenue |  | 490,000 |  | 510,000 |  | 1,495,000 |  | 1,540,000 |
Labor and labor-related | [2] | 65,000 |  | 33,000 |  | 197,000 |  | 95,000 |
Cost of Revenue |  | 281,000 |  | 261,000 |  | 879,000 |  | 897,000 |
Other segment items | [3] | 0 |  | 1,000 |  | 1,000 |  | 0 |
Segment profit |  | $ 144,000 |  | $ 215,000 |  | $ 418,000 |  | $ 545,000 |
Segment profit margin % |  | 29.00% |  | 42.00% |  | 28.00% |  | 35.00% |
Severance |  |  |  | $ 0 |  |  |  | $ 0 |
Professional services |  |  |  | 0 |  |  |  | 0 |
Bad debt recovery |  |  |  |  |  | $ 0 |  |  |
Operating Segments [Member] | Managed Services [Member] | Network Services [Member] |  |  |  |  |  |  |  |  |
Revenue |  | $ 477,000 |  | 502,000 |  | 1,457,000 |  | 1,489,000 |
Operating Segments [Member] | Managed Services [Member] | Video Collaboration Service [Member] |  |  |  |  |  |  |  |  |
Revenue |  | 10,000 |  | 6,000 |  | 28,000 |  | 41,000 |
Operating Segments [Member] | Managed Services [Member] | Professional and Other Services [Member] |  |  |  |  |  |  |  |  |
Revenue |  | 3,000 |  | 2,000 |  | 10,000 |  | 10,000 |
Operating Segments [Member] | Managed Services [Member] | Property and Office Expense [Member] |  |  |  |  |  |  |  |  |
Cost of Revenue |  |  |  |  |  |  |  | 0 |
Operating Segments [Member] | Managed Services [Member] | Inventory and Inventory-related [Member] |  |  |  |  |  |  |  |  |
Cost of Revenue |  |  |  | 0 |  |  |  | 0 |
Operating Segments [Member] | Managed Services [Member] | Other Non-inventory [Member] |  |  |  |  |  |  |  |  |
Cost of Revenue |  |  |  |  |  |  |  | 3,000 |
Operating Segments [Member] | Collaboration Products [Member] |  |  |  |  |  |  |  |  |
Revenue |  | 14,000 |  | 68,000 |  | 221,000 |  | 275,000 |
Labor and labor-related | [2] | 0 |  | 176,000 |  | 13,000 |  | 514,000 |
Cost of Revenue |  | 0 |  | 0 |  | 19,000 |  | 0 |
Other segment items | [3] | 6,000 |  | 14,000 |  | 0 |  | (12,000) |
Segment profit |  | $ 8,000 |  | $ (239,000) |  | $ 207,000 |  | $ (665,000) |
Segment profit margin % |  | 57.00% |  | (351.00%) |  | 94.00% |  | (242.00%) |
Severance |  |  |  | $ 46 |  |  |  | $ 46 |
Professional services |  |  |  | 35,000 |  |  |  | 144,000 |
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 |  | 14,000 |  | 68,000 |  | 221,000 |  | 275,000 |
Operating Segments [Member] | Collaboration Products [Member] | Professional and Other Services [Member] |  |  |  |  |  |  |  |  |
Revenue |  | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Collaboration Products [Member] | Property and Office Expense [Member] |  |  |  |  |  |  |  |  |
Cost of Revenue |  |  |  |  |  |  |  | 45,000 |
Operating Segments [Member] | Collaboration Products [Member] | Inventory and Inventory-related [Member] |  |  |  |  |  |  |  |  |
Cost of Revenue |  |  |  | 36,000 |  |  |  | 185,000 |
Operating Segments [Member] | Collaboration Products [Member] | Other Non-inventory [Member] |  |  |  |  |  |  |  |  |
Cost of Revenue |  |  |  |  |  |  |  | 18,000 |
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] |  |  |  |  |  |  |  |  |
Digital asset revenue, net |  | (89,000) | [4] |  |  | (90,000) | [5] |  |
Other digital asset expenses |  | 107,000 | [6] |  |  | 107,000 | [7] |  |
Corporate expenses |  | 936,000 | [8] | 988,000 | [9] | 2,786,000 | [10] | 3,018,000 | [11]
Unrealized gain |  | 1,517,000 |  |  |  |  |  |  |
Interest income, net |  | (29,000) |  | (32,000) | [9] | (104,000) |  | (110,000) | [11]
Loss before income tax expense |  | $ (2,290,000) |  | (1,040,000) | [9] | (3,560,000) |  | (3,150,000) | [11]
Severance |  |  |  | 60 | [9] |  |  | 60 | [11]
Professional services |  |  |  | 35,000 |  |  |  | 144,000 |
Bad debt recovery |  |  |  |  |  | (18,000) |  |  |
Crypto Asset, Unrealized Gain (Loss), Nonoperating |  |  |  |  |  | $ 1,486,000 |  |  |
Stock compensation | [11] |  |  |  |  |  |  | 62,000 |
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] | Property and Office Expense [Member] |  |  |  |  |  |  |  |  |
Cost of Revenue |  |  |  |  |  |  |  | 45,000 |
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] | Inventory and Inventory-related [Member] |  |  |  |  |  |  |  |  |
Cost of Revenue |  |  |  | $ 36,000 |  |  |  | 185,000 |
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] | Other Non-inventory [Member] |  |  |  |  |  |  |  |  |
Cost of Revenue |  |  |  |  |  |  |  | $ 21,000 |
[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 and unrealized gains from the fair-value remeasurement of digital assets.
[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] | Digital asset revenue, net, includes staking reward revenue of $97,000 and $99,000 for the three and nine months ended September 30, 2025, respectively, offset by cost of revenue of $8,000 and $9,000 for the three and nine months ended September 30, 2025, respectively.
[5] | Digital asset revenue, net, includes staking reward revenue of $97,000 and $99,000 for the three and nine months ended September 30, 2025, respectively, offset by cost of revenue of $8,000 and $9,000 for the three and nine months ended September 30, 2025, respectively.
[6] | Other digital asset expenses include cash advisory fees of $23,000, and stock-based advisory fees of $84,000, for the three and nine months ended September 30, 2025.
[7] | Other digital asset expenses include cash advisory fees of $23,000, and stock-based advisory fees of $84,000, for the three and nine months ended September 30, 2025.
[8] | 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.
[9] | 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.
[10] | 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.
[11] | 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.

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