Note 6 - Earnings Per Share (Details Textual) - shares	3 Months Ended	6 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Weighted Average Number of Shares Outstanding, Diluted, Adjustment (in shares)	29,905	33,703	34,781	37,865
Stock Settled Stock Appreciation Rights SSARs [Member]
Weighted Average Number of Shares Outstanding, Diluted, Adjustment (in shares)	8,589	17,725	8,900	18,983
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	46,423		46,423
Restricted Stock [Member]
Weighted Average Number of Shares Outstanding, Diluted, Adjustment (in shares)	21,316	15,978	25,881	18,882

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 260
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482662/260-10-50-1

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration