Note 9 - Segment Reporting - Schedule of Segment Reporting Information by Segment (Details) - USD ($)		3 Months Ended
		Mar. 31, 2026	Mar. 31, 2025
Revenue		$ 707,000	$ 622,000
Revenue, Percent of Change		14.00%
Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization		$ 237,000	373,000
Cost of revenues, Percent of Change		(36.00%)
Gross margin		$ 470,000	249,000
Gross Margin, Percent of Change		89.00%
Operating expenses		$ 1,029,000	940,000
Operating expenses, Percent of Change		9.00%
Other income (expense), net		$ 2,256,000	26,000
Other income (expense), Percent of Change		8577.00%
Net income (loss) before taxes		$ 1,697,000	(665,000)
Net income (loss) before taxes, Percent of Change		(355.00%)
Income tax expense		$ 0	7,000
Income tax expense, Percent of Change		100.00%
Net Income (Loss) Attributable to Parent		$ 1,697,000	(672,000)
Net income (loss), Percent of Change		(353.00%)
Operating Segments [Member]
Revenue		$ 707,000	622,000
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
Operating expenses	[1]	$ 923,000	948,000
Operating expenses, Percent of Change		(3.00%)
Other income (expense), net	[2]	$ 6,000	27,000
Other income (expense), Percent of Change		(78.00%)
Net income (loss) before taxes		$ 1,697,000	(665,000)	[3]
Digital Assets [Member]
Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization		6,000	0
Digital Assets [Member] | Operating Segments [Member]
Revenue		$ 86,000	0
Revenue, Percent of Change		100.00%
Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization		$ 6,000	0
Cost of revenues, Percent of Change		100.00%
Gross margin		$ 80,000	0
Gross Margin, Percent of Change		100.00%
Operating expenses	[4]	$ 99,000	0
Operating expenses, Percent of Change		100.00%
Other income (expense), net	[5]	$ 2,250,000	0
Other income (expense), Percent of Change		100.00%
Managed Services [Member] | Operating Segments [Member]
Revenue		$ 422,000	508,000
Revenue, Percent of Change		(17.00%)
Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization		$ 223,000	371,000
Cost of revenues, Percent of Change		(40.00%)
Gross margin		$ 199,000	137,000
Gross Margin, Percent of Change		45.00%
Operating expenses	[6]	$ 0	(1,000)
Operating expenses, Percent of Change		(100.00%)
Collaboration Products [Member] | Operating Segments [Member]
Revenue		$ 199,000	114,000
Revenue, Percent of Change		75.00%
Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization		$ 8,000	2,000
Cost of revenues, Percent of Change		300.00%
Gross margin		$ 191,000	112,000
Gross Margin, Percent of Change		71.00%
Operating expenses	[7]	$ 7,000	$ (8,000)
Operating expenses, Percent of Change		(188.00%)

[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.

[4] Operating expenses related to the Company's Digital Assets segment include cash and stock-based advisory fees.

[5] Other income (expense) for the Company's Digital Assets segment includes unrealized gains and (losses) from revaluations of our digital assets. The three months ended March 31, 2026 also includes realized gains on the sale of digital assets.

[6] Other expense for the Company's Managed Services segment includes interest expense.

[7] Operating expenses related to the Company's Collaboration Products Segment include sales and marketing, and other miscellaneous expenses.