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Note 6 - Stockholders' Equity - Common Share Dividends (Details) - USD ($) $ / shares in Units, $ in Thousands						3 Months Ended
	Mar. 01, 2023	Dec. 01, 2022	Sep. 01, 2022	Jun. 01, 2022	Mar. 01, 2022	Mar. 31, 2023	Mar. 31, 2022
Dividend (in dollars per share)	$ 0.06	$ 0.06	$ 0.06	$ 0.06	$ 0.06
Total paid	$ 833	$ 833	$ 829	$ 827	$ 822	$ 833	$ 822

X

- Definition

Aggregate dividends paid during the period for each share of common stock outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480008/505-10-S99-1

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

X

- Definition

Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482740/230-10-45-15

+ Details

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