Note 1 - General (Details Textual) - USD ($) $ in Thousands, shares in Millions	Jun. 30, 2022	Dec. 31, 2021
Cash and Cash Equivalents, at Carrying Value, Total	$ 17,510	$ 24,739
Debt Securities, Trading, and Equity Securities, FV-NI, Total	$ 2,407	$ 4,549
Bright Health [Member]
Investment Owned, Balance, Shares (in shares)	1.3
Debt Securities, Trading, and Equity Securities, FV-NI, Total	$ 2,400

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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 4
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3044-108585

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 1
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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