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Note 9 - Share-based Compensation and Employee Benefit Plan (Tables)

3 Months Ended

Mar. 31, 2022

Notes Tables

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

Three months ended March 31, 2022:		Number of Shares Awarded				Weighted Average Grant Date Fair Value
Unvested at December 31, 2021			21,468			$	6.48
Unvested at March 31, 2022			21,468			$	6.48
Three months ended March 31, 2021:
Unvested at December 31, 2020			18,498			$	7.29
Vested			(700	)		$	17.85
Unvested at March 31, 2021			17,798			$	6.88

X

- Definition

Tabular disclosure of the changes in outstanding nonvested restricted stock units.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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X

- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
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