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Note 9 - Per Share Data - Antidilutive Securities Excluded from Computation (Details) - shares		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
Warrant [Member]
Antidilutive securities (in shares)		0	0
Share-Based Payment Arrangement, Option [Member]
Antidilutive securities (in shares)		150,000	186,191
Restricted Stock Units (Stock Settled) [Member]
Antidilutive securities (in shares)	[1]	325,903	163,946
[1] For the three months ended March 31, 2022, this includes 54,792 units which are expected to settle in cash.

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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