Note 4 - Revenue and Segment Information - Contract Balances (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Accounts receivable (including related-party), beginning January 1st, of period	$ 5,960	$ 4,300
Accounts receivable (including related-party), balance	9,214	5,960
Unearned revenue, beginning January 1st, of period	2,727	3,243
Unearned revenue, balance	$ 634	$ 2,727

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant