Note 8 - Accounts Receivable (Details Textual) - USD ($)	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Jan. 01, 2023
Accounts Receivable, Credit Loss Expense (Reversal)	$ (50,000)	$ 12,000
Accounts Receivable, after Allowance for Credit Loss	6,575,000	$ 7,800,000	$ 8,923,000	$ 400,000
Maximum [Member]
Accounts Receivable, Credit Loss Expense (Reversal)	$ 100,000