Note 2 - Income Per Share (Details Textual) - shares	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Restricted Stock [Member]
Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements (in shares)	79,000	288,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	0	0
Share-Based Payment Arrangement, Option [Member]
Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements (in shares)	634,000	228,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	0	51,000