Note 21 - Segment and Geographic Information - Balance Sheet Data (Details) - USD ($) $ in Thousands		Mar. 31, 2026	Dec. 31, 2025	Dec. 31, 2024
Total Assets		$ 684,137	$ 700,585
Investment in equity method affiliates		11,258	6,661	$ 23,430
Goodwill	[1]	109	109
Intangible assets	[1]	166	166
Operating Segments [Member]
Total Assets		654,506	630,424
Investment in equity method affiliates		11,258	6,661
Goodwill	[1]	109	109
Intangible assets	[1]	166	166
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment [Member]
Total Assets	[2]	29,631	70,161
Investment in equity method affiliates	[2]	0	0
Goodwill	[1],[2]	0	0
Intangible assets	[1],[2]	0	0
Capital Markets [Member] | Operating Segments [Member]
Total Assets		616,344	591,923
Investment in equity method affiliates		0	0
Goodwill	[1]	54	54
Intangible assets	[1]	166	166
Asset Management Segment [Member] | Operating Segments [Member]
Total Assets		8,968	11,408
Investment in equity method affiliates		0	0
Goodwill	[1]	55	55
Intangible assets	[1]	0	0
Principal Investing [Member] | Operating Segments [Member]
Total Assets		29,194	27,093
Investment in equity method affiliates		11,258	6,661
Goodwill	[1]	0	0
Intangible assets	[1]	$ 0	$ 0

[1] Goodwill and intangible assets are allocated to the Capital Markets and Asset Management business segments as indicated in the table above.

[2] Unallocated assets primarily include (1) amounts due from related parties; (2) furniture and equipment, net; and (3) other assets that are not considered necessary for an understanding of business segment assets and such amounts are excluded from business segment reporting to the CODM.