Note 11 - Share-Based Compensation - Schedule of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Outstanding, Stock Options (in shares)	202,600
Outstanding, Weighted Average Exercise Price per Share (in dollars per share)	$ 14.76
Outstanding, Weighted Average Remaining Contractual Life (Year)	7 years 8 months 19 days	7 years 7 months 6 days
Outstanding, Weighted Average Grant Date Fair Value per Share (in dollars per share)	$ 5.94
Outstanding, Aggregate Intrinsic Value	$ 5,884,764	$ 37,773
Vested, Stock Options (in shares)	105,313
Vested, Weighted Average Exercise Price per Share (in dollars per share)	$ 16.01
Vested, Weighted Average Remaining Contractual Life (Year)	6 years 3 months	6 years 9 months 18 days
Vested, Weighted Average Grant Date Fair Value per Share (in dollars per share)	$ 5.78
Vested, Aggregate Intrinsic Value	$ 2,093,685	$ 9,661
Nonvested, Stock Options (in shares)	97,287
Nonvested, Weighted Average Exercise Price per Share (in dollars per share)	$ 13.41
Nonvested, Weighted Average Remaining Contractual Life (Year)	8 years 7 months 17 days	8 years 5 months 19 days
Nonvested, Weighted Average Grant Date Fair Value per Share (in dollars per share)	$ 6.12
Nonvested, Aggregate Intrinsic Value	$ 3,791,078	$ 28,112
Issued, Stock Options (in shares)	115,900
Issued, Weighted Average Exercise Price per Share (in dollars per share)	$ 12.31
Issued, Weighted Average Grant Date Fair Value per Share (in dollars per share)	$ 7.29
Common stock issued-stock options (in shares)	6,200	4,000
Exercised, Weighted Average Exercise Price per Share (in dollars per share)	$ 13.57
Exercised, Weighted Average Grant Date Fair Value per Share (in dollars per share)	$ 6.01
Forfeited, Stock Options (in shares)	27,200
Forfeited, Weighted Average Exercise Price per Share (in dollars per share)	$ 16.25
Forfeited, Weighted Average Grant Date Fair Value per Share (in dollars per share)	$ 6.98
Expired, Stock Options (in shares)	0
Expired, Weighted Average Exercise Price per Share (in dollars per share)	$ 0
Expired, Weighted Average Grant Date Fair Value per Share (in dollars per share)
Outstanding , Stock Options (in shares)	285,100	202,600
Outstanding, Weighted Average Exercise Price per Share (in dollars per share)	$ 13.65	$ 14.76
Outstanding, Weighted Average Grant Date Fair Value per Share (in dollars per share)	$ 6.39	$ 5.94
Vested, Stock Options (in shares)	109,840	105,313
Vested, Weighted Average Exercise Price per Share (in dollars per share)	$ 15.23	$ 16.01
Vested, Weighted Average Grant Date Fair Value per Share (in dollars per share)	$ 5.46	$ 5.78
Nonvested, Stock Options (in shares)	175,260	97,287
Nonvested, Weighted Average Exercise Price per Share (in dollars per share)	$ 12.66	$ 13.41
Nonvested, Weighted Average Grant Date Fair Value per Share (in dollars per share)	$ 6.97	$ 6.12