Note 3 - Digital Assets (Details Textual)	3 Months Ended	12 Months Ended
Mar. 31, 2026 USD ($)	Mar. 31, 2025 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Crypto Asset, Unrealized Gain (Loss), Nonoperating	$ 2,198,000	$ 0
Crypto Asset, Fair Value	7,209,000
Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization	237,000	373,000
Gross Profit	470,000	249,000
Proceeds from Disposal, Crypto Asset	522,000	0
Crypto Asset, Realized Gain (Loss), Nonoperating	52,000	0
Digital Assets [Member]
Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization	6,000	$ 0
Gross Profit	$ 80,000
Gross Profit, Percentage	93.00%
Bittensor (TAO) [Member]
Percentage of Treasury Invested in Crypto Assets	72.00%		66.00%
Crypto Asset, Unrealized Gain (Loss), Nonoperating	$ 2,198,000		$ (3,519,000)
Crypto Asset, Fair Value	$ 7,209,000		$ 5,395,000	$ 0
Tokens purchased, tokens	0		24,127.62
Crypto Asset, Purchase			$ 8,736,000
Crypto Asset, Units Sold	1,457
Proceeds from Disposal, Crypto Asset	$ 522,000
Crypto Asset, Realized Gain (Loss), Nonoperating	$ 52,000
Bittensor (TAO) Staking Rewards [Member]
Tokens purchased, tokens	348.44	0	543.96
Crypto Asset, Purchase	$ 86,000	$ 0	$ 186,000

The number of crypto units purchased during the period.

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The number of crypto units sold during the period.

+ References

No definition available.

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Amount of gross profit as percentage.

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Percentage of treasury invested in crypto assets.

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No definition available.

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Cost of product sold and service rendered, excluding depreciation, depletion, and amortization.

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Fair value of crypto asset. Excludes crypto asset held for platform user.

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Amount of increase in crypto asset from purchase. Excludes crypto asset held for platform user.

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Amount of realized gain (loss) from remeasurement of crypto asset, classified as nonoperating. Excludes crypto asset held for platform user.

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Amount of unrealized gain (loss) from remeasurement of crypto asset, classified as nonoperating. Excludes crypto asset held for platform user.

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Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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Amount of cash inflow from disposal of crypto asset. Excludes crypto asset held for platform user.

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