Note 5 - Digital Assets (Details Textual) $ / shares in Units, $ in Thousands		3 Months Ended		9 Months Ended
	Jan. 16, 2026 USD ($) $ / shares	Sep. 30, 2026 USD ($)	Sep. 30, 2025 USD ($)	Sep. 30, 2026 USD ($)	Sep. 30, 2025 USD ($)	Dec. 31, 2025 USD ($)
Crypto Asset, Number of Units		2,321,079,862		2,321,079,862		0
Crypto Asset, Unrealized Gain (Loss), Operating		$ 58,828	$ 0	$ 30,869	$ 0
Crypto Asset, Number of Units Received From Equity Issuance		943,599,689		943,599,689
Crypto Asset, Received From Equity Issuance				$ 58,031
Crypto Asset, Fair Value		$ 180,209		$ 180,209		$ 0
Crypto Asset, Number of Units Received As Rewards				101,701,388
Crypto Asset, Recevied As Rewards				$ 6,809
SKY Tokens [Member]
Crypto Asset, Number of Units		2,321,079,862		2,321,079,862
Crypto Asset, Unrealized Gain (Loss), Operating		$ (58,800)		$ (30,900)
January 2026 SKY Tokens [Member]
Crypto Asset, Number of Units Received From Equity Issuance	943,599,689
Crypto Asset, Received From Equity Issuance	$ 58,000
Crypto Asset, Per Token Price | $ / shares	$ 0.0615
Crypto Asset, Fair Value	$ 58,000
Stablecoins [Member]
Crypto Asset, Fair Value	$ 51,000
Staking Award SKY Tokens [Member]
Crypto Asset, Number of Units		2,320,499,452		2,320,499,452
Crypto Asset, Number of Units Received As Rewards		34,568,488		101,701,388
Crypto Asset, Recevied As Rewards		$ 2,100		$ 6,800