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v3.25.3

Note 1 - Business Description and Significant Accounting Policies (Details Textual) | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Jun. 06, 2025 USD ($) | Dec. 31, 2024 USD ($)
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation | $ 3,737,000 | $ 5,619,000 | $ 3,737,000 | $ 5,619,000 |  | $ 4,965,000
Certificates of Deposit, at Carrying Value | 500,000 | 500,000 | 500,000 | 500,000 |  | $ 500,000
Stock-based Advisory Fees | 84,000 |  | $ 84,000 |  |  |
Number of Operating Segments |  |  | 2 |  |  |
Number of Reportable Segments |  |  | 2 |  |  |
Crypto Asset, Unrealized Gain (Loss), Nonoperating | (1,517,000) | $ 0 | $ (1,486,000) | $ 0 |  |
Crypto Asset, Realized Gain (Loss), Operating and Nonoperating | 0 |  | 0 |  |  |
Bittensor (TAO) Staking Rewards [Member] |  |  |  |  |  |
Crypto Asset, Fair Value | 6,610,000 |  | 6,610,000 |  |  |
Crypto Asset, Staking Activity | 97,000 |  | 99,000 |  |  |
Crypto Asset, Staking Activity, Cost | 8,000 |  | 9,000 |  |  |
Prefunded Warrants [Member] |  |  |  |  |  |
Class of Warrant or Right, Issuance Costs |  |  |  |  | $ 375,000 |
Warrants and Rights Outstanding, Term (Month) |  |  |  |  | 12 months |
Stock-based Advisory Fees | 84,000 |  | 84,000 |  |  |
Class of Warrant or Right, Remaining Issuance Costs | $ 291,000 |  | $ 291,000 |  |  |
G P Communications [Member] |  |  |  |  |  |
Subsidiary, Ownership Percentage, Parent | 100.00% |  | 100.00% |  |  |

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- Definition Amount of cash and cash equivalent, and cash and cash equivalent restricted to withdrawal or usage; attributable to continuing operation. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482913/230-10-50-8 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 24 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-24 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-4 + Details
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- Definition A savings certificate entitling the Entity (that is, bearer) to receive interest at an established maturity date, based upon a fixed interest rate. A certificate of deposit may be issued in any denomination. Certificates of deposit are generally issued by commercial banks and, therefore, insured by the FDIC (up to the prescribed limit). Certificates of deposit generally restrict holders from withdrawing funds on demand without the incurrence of penalties. Generally, only certificates of deposit with original maturities of three months or less qualify as cash equivalents. Original maturity means original maturity to the entity holding the investment. As a related example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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