Note 14 - Equity Incentive Plan - Valuation Assumption (Details) - $ / shares	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Expected stock price volatility	4.50%	4.50%	4.50%
Expected dividend yield	0.00%	0.00%	0.00%
Fair value per option (in dollars per share)	$ 10.52	$ 11.45	$ 11.45
Minimum [Member]
Risk-free interest rate	3.48%	3.52%	1.28%
Expected stock price volatility	41.54%	48.19%	53.80%
Maximum [Member]
Risk-free interest rate	4.62%	4.64%	4.28%
Expected stock price volatility	48.19%	49.44%	55.55%