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Note 18 - Variable Interest Entities - Consolidated VIEs (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash and cash equivalents	$ 50,567	$ 41,996
Receivables	68,392	52,917
Other Investments, Fair Value Disclosure	56,033	58,540
Investment in equity method affiliates	48,238	13,482	$ 3,799	$ 0
Variable Interest Entity, Primary Beneficiary [Member]
Cash and cash equivalents	43	270
Receivables	0	2,112
Other Investments, Fair Value Disclosure	9,543	36,395
Investment in equity method affiliates	33,080	9,805
Non-controlling interest	(29,979)	(27,805)
Investment in consolidated VIEs	$ 12,687	$ 20,777

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Amount of investments, other than trading securities, measured at fair value.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Sum of the carrying amounts as of the balance sheet date of all investments.

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Portion of equity (net assets) in a variable interest entity (VIE) not attributable, directly or indirectly, to the parent entity. That is, this is the portion of equity in a VIE that is attributable to the noncontrolling interest (previously referred to as minority interest).

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Amount receivable from broker-dealers and clearing organizations, including, but not limited to, securities failed-to-deliver, certain deposits for securities borrowed, open transactions, good faith and margin deposits, commissions and floor brokerage receivables.

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