Note 17 - Stock Based Compensation - Stock Option Activity (Details) - $ / shares	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Outstanding (in shares)	44,000	24,000	44,000
Outstanding, weighted average exercise price (in dollars per share)	$ 10.74	$ 13.71	$ 12.73
Granted (in shares)	0	20,000	0
Granted, weighted average exercise price (in dollars per share)	$ 0	$ 7.18	$ 0
Exercised (in shares)	0	0	(20,000)
Exercised, weighted average exercise price (in dollars per share)	$ 0	$ 0	$ 11.56
Canceled, forfeited, or expired (in shares)	(10,000)	0	0
Canceled, forfeited, or expired, weighted average exercise price (in dollars per share)	$ 16.21	$ 0	$ 0
Outstanding (in shares)	34,000	44,000	24,000
Outstanding, weighted average exercise price (in dollars per share)	$ 9.13	$ 10.74	$ 13.71

For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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