Note 22 - Segment and Geographic Information - Balance Sheet Data (Details) - USD ($) $ in Thousands		Mar. 31, 2024	Dec. 31, 2023
Total Assets		$ 1,061,325	$ 772,761
Investment in equity method affiliates		43,281	14,241
Goodwill	[1]	109	109
Intangible assets	[1]	166	166
Operating Segments [Member]
Total Assets		1,048,976	758,176
Investment in equity method affiliates		43,281	14,241
Goodwill	[1]	109	109
Intangible assets	[1]	166	166
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment [Member]
Total Assets	[2]	12,349	14,585
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		935,308	665,597
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		4,230	5,633
Investment in equity method affiliates		0	0
Goodwill	[1]	55	55
Intangible assets	[1]	0	0
Principal Investing [Member] | Operating Segments [Member]
Total Assets		109,438	86,946
Investment in equity method affiliates		43,281	14,241
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 tables above.

[2] Unallocated assets primarily include: (i) amounts due from related parties; (ii) furniture and equipment, net; and (iii) other assets that are not considered necessary for an understanding of business segment assets. Such amounts are excluded in business segment reporting to the chief operating decision maker.