XML 45 R31.htm IDEA: XBRL DOCUMENT v3.24.0.1

Note 4 - Marketable Equity Securities (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

Marketable Securities [Table Text Block]

		2023				2022
		(in thousands)
Available-for-sale securities:
Fair market value		$	43,203			$	41,728
Cost			30,294				30,350
Unrealized gain		$	12,909			$	11,378

Unrealized Gain (Loss) on Investments [Table Text Block]

		2023				2022
		(in thousands)
Available-for-sale securities:
Gross unrealized gains		$	15,539			$	13,478
Gross unrealized losses			2,630				2,100
Net unrealized gains		$	12,909			$	11,378

Schedule of Realized Gain (Loss) [Table Text Block]

		2023				2022				2021
		(in thousands)
Realized (losses) gains:
Sale proceeds		$	343			$	-			$	3,109
Cost of securities sold			255				-				3,199
Realized (losses) / gains		$	88			$	-			$	(90	)

X

- Definition

Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets.

+ References

No definition available.

+ Details

Name:	us-gaap_MarketableSecuritiesTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the proceeds from sales of available-for-sale securities and the gross realized gains and gross realized losses that have been included in earnings as a result of those sales.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-9

+ Details

Name:	us-gaap_ScheduleOfRealizedGainLossTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_TableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of unrealized gains and losses on investments.

+ References

No definition available.

+ Details

Name:	us-gaap_UnrealizedGainLossOnInvestmentsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration