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Note 14 - Equity (Details Textual) - USD ($) $ / shares in Units, shares in Thousands		3 Months Ended		9 Months Ended
	May 05, 2022	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Aug. 02, 2021
Stock Repurchase Program, Authorized Amount						$ 50,000,000
Stock Repurchased During Period, Shares (in shares)		0		1,500
Stock Repurchased During Period, Value			$ 7,134,688	$ 10,149,704	$ 20,264,547
Special Dividend [Member]
Common Stock, Dividends, Per Share, Declared (in dollars per share)	$ 0.45
Dividends, Total	$ 32,900,000
New Repurchase Authorization [Member]
Stock Repurchase Program, Authorized Amount						$ 50,000,000
Stock Repurchased During Period, Shares (in shares)			1,100		3,000
Stock Repurchased During Period, Value			$ 7,100,000		$ 20,300,000

X

- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
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- Definition

Amount of paid and unpaid cash, stock, and paid-in-kind (PIK) dividends declared, for example, but not limited to, common and preferred stock.

+ References

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-SubTopic 10
-Section S99
-Paragraph 1
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Amount of stock repurchase plan authorized.

+ References

No definition available.

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X

- Definition

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

+ References

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- Definition

Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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