Note 7 - Digital Assets - Crypto Asset Holdings (Details) |
Mar. 31, 2026
USD ($)
$ / shares
|
Dec. 31, 2025
USD ($)
$ / shares
|
Mar. 31, 2025
USD ($)
$ / shares
|
|---|---|---|---|
| Units held | 8,142,127 | 0 | 8,142,127 |
| Value per unit (in dollars per share) | $ / shares | $ 1 | $ 0 | $ 1 |
| Fair market value of crypto assets | $ | $ 8,142,127 | $ 0 | $ 8,142,127 |
| FRX USD [Member] | |||
| Units held | 6,635,396 | 0 | 6,635,396 |
| Value per unit (in dollars per share) | $ / shares | $ 1 | $ 0 | $ 1 |
| Fair market value of crypto assets | $ | $ 6,635,396 | $ 0 | $ 6,635,396 |
| USDC [Member] | |||
| Units held | 1,506,731 | 0 | 1,506,731 |
| Value per unit (in dollars per share) | $ / shares | $ 1 | $ 0 | $ 1 |
| Fair market value of crypto assets | $ | $ 1,506,731 | $ 0 | $ 1,506,731 |