Note 13 - Goodwill - Goodwill (Details) - USD ($) $ in Thousands		Dec. 31, 2020	Dec. 31, 2019
Goodwill	[1]	$ 109	$ 7,992
Alesco Financial Inc (AFN) [Member]
Goodwill		109	109
JVB Holdings [Member]
Goodwill			$ 7,883

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