Note 10 - Leases (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Operating Lease, Weighted Average Remaining Lease Term (Month)	39 months	29 months
Operating Lease, Weighted Average Discount Rate, Percent	4.40%	2.30%
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 318,000	$ 0
Operating Lease, Payments	285,000	504,000
Operating Lease, Cost	5,700,000	3,700,000
Short-Term Lease, Cost	$ 5,400,000	$ 3,200,000