Note 3 - Digital Assets - Summary of Crypto Asset Activities (Details) - Bittensor (TAO) Staking Rewards [Member] $ in Thousands |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
|
Jun. 30, 2026
USD ($)
|
Jun. 30, 2025
USD ($)
|
Jun. 30, 2026
USD ($)
|
Jun. 30, 2025
USD ($)
|
Dec. 31, 2025
USD ($)
|
|
| Tokens purchased, tokens | 380.53 | 6.57 | 728.97 | 6.57 | 543.96 |
| Crypto purchases, fair value | $ 105 | $ 2 | $ 191 | $ 2 | $ 186 |