Note 1 - Business Description and Significant Accounting Policies (Details Textual)		12 Months Ended
		Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Jun. 30, 2025 USD ($)
Number of Operating Segments		3
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation		$ 2,258,000	$ 4,965,000
Certificates of Deposit, at Carrying Value		$ 500,000	500,000
Crypto Asset, Number of Custodians		2
Crypto Asset, Unrealized Gain (Loss), Nonoperating		$ (3,519,000)	0
Crypto Asset, Fair Value		5,395,000
Crypto Asset, Realized Gain (Loss), Operating and Nonoperating		0
Accounts Receivable, Credit Loss Expense (Reversal)		(18,000)	2,000
Inventory, Net		0	0
Prepaid Expense and Other Assets, Current		$ 424,000	118,000
Prepaid Expense, Year-over-year Increase (Decrease)		259.00%
Revenue from Contract with Customer, Including Assessed Tax		$ 2,437,000	2,378,000
Excise and Sales Taxes		62,000	68,000
Cost, Direct Tax and License		70,000	74,000
Share-Based Payment Arrangement, Expense		$ 62,000	$ 0
Number of Reportable Segments		3	2
Prefunded Warrants [Member]
Class of Warrant or Right, Issuance Costs				$ 335,000
Warrants and Rights Outstanding, Term (Month)				12 months
Stock-based Advisory Fees		$ 169,000
Class of Warrant or Right, Remaining Issuance Costs		168,000
Transferred at Point in Time [Member]
Revenue from Contract with Customer, Including Assessed Tax		2,374,000	$ 2,222,000
Transferred over Time [Member]
Revenue from Contract with Customer, Including Assessed Tax		63,000	156,000
Bittensor (TAO) Staking Rewards [Member]
Crypto Asset, Fair Value		5,395,000
Crypto Asset, Staking Activity		186,000
Operating Segments [Member]
Accounts Receivable, Credit Loss Expense (Reversal)		(18,000)	2,000
Revenue from Contract with Customer, Including Assessed Tax		2,437,000	2,378,000
Share-Based Payment Arrangement, Expense		169,000
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
Prepaid Expense and Other Assets, Current		234,000	103,000
Share-Based Payment Arrangement, Expense	[1]		62,000
Managed Services [Member]
Accounts Receivable, after Allowance for Credit Loss		138,000	161,000
Revenue, Remaining Performance Obligation, Amount		0	0
Managed Services [Member] | Transferred at Point in Time [Member] | Videoconferencing Services [Member]
Revenue from Contract with Customer, Including Assessed Tax		1,957,000
Managed Services [Member] | Operating Segments [Member]
Accounts Receivable, Credit Loss Expense (Reversal)		0	0
Prepaid Expense and Other Assets, Current		15,000	8,000
Revenue from Contract with Customer, Including Assessed Tax		1,957,000	2,062,000
Share-Based Payment Arrangement, Expense		0
Collaboration Products [Member]
Accounts Receivable, after Allowance for Credit Loss			25,000
Revenue, Remaining Performance Obligation, Amount		13,000	36,000
Contract with Customer, Liability, Revenue Recognized		$ 36,000	132,000
Collaboration Products [Member] | Maintenance [Member] | Minimum [Member]
Revenue From Contracta With Customers, Recognition Period (Year)		1 year
Collaboration Products [Member] | Maintenance [Member] | Maximum [Member]
Revenue From Contracta With Customers, Recognition Period (Year)		3 years
Collaboration Products [Member] | Transferred at Point in Time [Member]
Revenue from Contract with Customer, Including Assessed Tax		$ 231,000
Collaboration Products [Member] | Transferred over Time [Member]
Revenue from Contract with Customer, Including Assessed Tax		63,000
Collaboration Products [Member] | Operating Segments [Member]
Accounts Receivable, Credit Loss Expense (Reversal)		(18,000)	2,000
Prepaid Expense and Other Assets, Current		7,000	7,000
Revenue from Contract with Customer, Including Assessed Tax		294,000	316,000
Share-Based Payment Arrangement, Expense		0
Digital Assets [Member] | Operating Segments [Member]
Accounts Receivable, Credit Loss Expense (Reversal)		0
Prepaid Expense and Other Assets, Current		168,000
Revenue from Contract with Customer, Including Assessed Tax		186,000	$ 0
Share-Based Payment Arrangement, Expense		$ 169,000
G P Communications [Member]
Subsidiary, Ownership Percentage, Parent			100.00%

[1] 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.