Note 6 - Per Share Amounts (Details Textual) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements (in shares)	101,000	0	97,000	129,000
Share-Based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	20,000	82,000	20,000	64,000
Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)		121,000
Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements (in shares)	123,000	123,000	123,000	123,000