Note 9 - Segment Reporting - Schedule of Segment Reporting Information by Segment (Details) - USD ($)		12 Months Ended
		Dec. 31, 2025	Dec. 31, 2024
Revenue from Contract with Customer, Including Assessed Tax		$ 2,437,000	$ 2,378,000
Revenue, Percent of Change		2.00%
Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization		$ 1,423,000	2,047,000
Cost of revenues, Percent of Change		(30.00%)
Gross margin		$ 1,014,000	331,000
Gross Margin, Percent of Change		206.00%
Operating Expenses		$ 3,976,000	4,533,000
Operating expenses, Percent of Change		(12.00%)
Other income (expense), net		$ (3,391,000)	169,000
Other income (expense), Percent of Change		(2107.00%)
Net loss before taxes		$ (6,353,000)	(4,033,000)
Net loss before taxes, Percent of Change		58.00%
Income tax expense		$ 2,000	10,000
Income tax expense, Percent of Change		(80.00%)
Net Income (Loss) Attributable to Parent		$ (6,355,000)	(4,043,000)
Net loss, Percent of Change		57.00%
Total assets		$ 8,219,000	5,275,000
Assets, Percent of Change		56.00%
Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax		$ 2,437,000	2,378,000
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
Operating Expenses	[1]	$ 3,756,000	4,192,000
Operating expenses, Percent of Change		(10.00%)
Other income (expense), net	[2]	$ 128,000	154,000
Other income (expense), Percent of Change		(17.00%)
Net loss before taxes		$ (6,353,000)	(4,033,000)	[3]
Total assets	[4]	$ 1,998,000	4,568,000
Assets, Percent of Change		(56.00%)
Digital Assets [Member]
Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization		$ 24,000
Digital Assets [Member] | Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax		$ 186,000	0
Revenue, Percent of Change		100.00%
Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization		$ 24,000	0
Cost of revenues, Percent of Change		100.00%
Gross margin		$ 162,000	0
Gross Margin, Percent of Change		100.00%
Operating Expenses	[5]	$ 209,000	0
Operating expenses, Percent of Change		100.00%
Other income (expense), net	[6]	$ (3,519,000)	0
Other income (expense), Percent of Change		(100.00%)
Total assets	[7]	$ 5,562,000	0
Assets, Percent of Change		100.00%
Managed Services [Member] | Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax		$ 1,957,000	2,062,000
Revenue, Percent of Change		(5.00%)
Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization		$ 1,384,000	1,337,000
Cost of revenues, Percent of Change		4.00%
Gross margin		$ 573,000	725,000
Gross Margin, Percent of Change		(21.00%)
Operating Expenses	[8]	$ 0	0
Operating expenses, Percent of Change		0.00%
Other income (expense), net	[9]	$ 0	(1,000)
Other income (expense), Percent of Change		(100.00%)
Total assets	[10]	$ 401,000	422,000
Assets, Percent of Change		(5.00%)
Collaboration Products [Member] | Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax		$ 294,000	316,000
Revenue, Percent of Change		(7.00%)
Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization		$ 15,000	710,000
Cost of revenues, Percent of Change		(98.00%)
Gross margin		$ 279,000	(394,000)
Gross Margin, Percent of Change		(171.00%)
Operating Expenses	[11]	$ 11,000	341,000
Operating expenses, Percent of Change		(97.00%)
Other income (expense), net	[9]	$ 0	16,000
Other income (expense), Percent of Change		100.00%
Total assets	[12]	$ 258,000	$ 285,000
Assets, Percent of Change		(9.00%)

[1] Corporate operating expenses include costs that are not specific to a particular segment but are general to the group. These include expenses for administrative, information technology, and accounting staff; general liability and other insurance; professional fees; and similar corporate expenses.

[2] Unallocated other income in Corporate is primarily related to interest income.

[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.

[4] Unallocated assets in Corporate include cash and prepaid expenses that are corporate in nature and don't apply to a single segment. The Company considers all cash holdings to be a corporate asset.

[5] Operating expenses related to our Digital Assets segment include cash and stock-based advisory fees.

[6] Other expense for our Digital Assets segment includes unrealized losses from revaluations of our digital assets.

[7] Digital Asset assets include the fair value of the Company's digital asset holdings as of the end of the period, and unamortized stock-based advisor expense.

[8] There were no operating expenses related to our Managed Service segment in 2025 and 2024.

[9] Other income (expense) for Managed Services and Collaboration Products segments include interest expense and non-operating income.

[10] Managed Services assets include cash equivalents, accounts receivable, and prepaid expenses.

[11] Operating expenses related to our Collaboration Products segment include non-capitalized software costs and commission expenses. In 2025 and 2024, $18,000 in bad debt recovery and $2,000 in bad debt expense were recorded, respectively.

[12] Collaboration Products' assets include cash equivalents and prepaid expenses.