Note 18 - Other Income (Expenses) (Details Textual) - USD ($) $ in Thousands		12 Months Ended
Aug. 01, 2020	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Purchase Agreement, Income		$ 17,033	$ 18,507	$ 20,030
Investment Income, Interest		4,485	132	0
Interest Income, Deposits with Financial Institutions		4,300
Purchase Agreement With DISH Wireless LLC [Member]
Purchase Agreement, Duration of Monthly Fees (Year)	10 years
Purchase Agreement, Income		$ 17,033	$ 18,507	$ 20,030

Interest income derived from funds deposited with both domestic and foreign financial institutions including funds in money market and other accounts.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1402
-Paragraph (a)
-Publisher SEC

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1402
-Paragraph (b)
-Subparagraph (1)
-Publisher SEC

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.4)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration