Note 12 - Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

Schedule of Dividends Payable [Table Text Block]

Dividend Payment Date	Amount per common share		Record Date
March 18, 2022	$	0.0325	February 18, 2022
June 24, 2022	$	0.0325	May 25, 2022
September 23, 2022	$	0.0325	August 25, 2022
December 22, 2022	$	0.0325	November 22, 2022
Aggregate per share amount paid in 2022	$	0.1300

Class of Treasury Stock [Table Text Block]

Period	Total Number of Shares Purchased		Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Programs		Maximum Amount that May Yet Be Used to Purchase Shares Under the Program
November 1, 2022 - November 30, 2022		288,758	$	5.21		288,758	$	28,500,463
December 1, 2022 - December 31, 2022		282,163	$	5.34		282,163	$	27,000,767
Total	570,921				570,921

Period	Total Number of Shares Purchased		Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Programs		Maximum Amount that May Yet Be Used to Purchase Shares Under the Program
January 1, 2023 - January 31, 2023		350,832	$	4.29		350,832	$	25,502,669
February 1, 2023 - February 28, 2023		326,992	$	4.61		326,992	$	24,003,172
March 1, 2023 - March 31, 2023		303,176	$	4.97		303,176	$	22,503,206
Total		981,000				981,000