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Note 2 - Earnings Per Common Share (Details Textual) - shares	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Share-Based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	452,000	193,750
Unvested Performance Unit Awards [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	0	40,263

X

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

+ Details

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X

- Details

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X

- Details

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