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Note 11 - Treasury Stock - Repurchases of Common Stock (Details) - $ / shares	1 Months Ended						21 Months Ended
	Sep. 30, 2023	Aug. 31, 2023	Jul. 31, 2023	Dec. 31, 2022	Jul. 31, 2022	Jan. 31, 2022	Sep. 30, 2023
Shares repurchased (in shares)	10	62	37	3	5	98	215
Average price paid per share (in dollars per share)	$ 8.95	$ 8.67	$ 8.51	$ 8.61	$ 8.85	$ 8.81
Approximate dollar value of shares that may yet be purchased under the plans or programs (in shares)	0	92	628	939	964	1,008	0
Publicly Announced Share Repurchase Program [Member]
Shares repurchased (in shares)	10	62	37	3	5	98	215

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.

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