Note 14 - Earnings Per Share ("EPS") - Securities Excluded From the Diluted Per Share Calculation (Details) - Exercise Price Greater Than Average Market Price Of Common Shares [Member] - shares	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Antidilutive securities (in shares)	4,875,282	4,901,932	4,875,282	4,901,932
Share-Based Payment Arrangement, Option [Member]
Antidilutive securities (in shares)	203,257	212,545	203,257	212,545
Warrant [Member]
Antidilutive securities (in shares)	4,672,025	4,689,387	4,672,025	4,689,387

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
-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

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