Note 17 - Employee Benefit Plans - (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	4.00%
Employee Compensation and Benefits	$ 2,400,000	$ 2,300,000	$ 1,800,000
Deferred Compensation Arrangement with Individual, Recorded Liability	3,500,000	3,000,000
Deferred Compensation Arrangement with Individual, Compensation Expense	$ 586,000	$ 507,000	$ 408,000