Note 5 - Fair Value Measurements - Schedule of Assets Measured on Recurring Basis, Unobservable Input Reconciliation (Details) - Fair Value, Recurring [Member] - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		$ 1,975	$ 0	$ 0	$ 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		49	0	56	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements)		496	0	2,464	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		2,520	0	2,520	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases		49	0	56	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales		0	0	0	0
Convertible Promissory Note Receivable [Member]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	1,975	0	0	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		49	0	56	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements)		496	0	2,464	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		2,520	0	2,520	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases		49	0	56	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales		$ 0	$ 0	$ 0	$ 0

[1] For the three and nine months ended September 30, 2026, includes accrued interest of $49 and $56, respectively. Refer to note (c) above for further information.