Note 6 - Non-Cash Share-Based Employee Compensation - Schedule of Stock Option Activity (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2026	Dec. 31, 2025
Outstanding, Stock Options (in shares)	460,643
Outstanding, Weighted Average Exercise Price per Share (in dollars per share)	$ 27.08
Outstanding, fair market value per share (in dollars per share)	27.08
Outstanding, Weighted Average Grant Date Fair Value per Share (in dollars per share)	$ 15.32
Outstanding, Weighted Average Remaining Contractual Life (Year)	7 years 10 months 2 days	7 years 9 months 18 days
Outstanding, weighted average remaining vesting term (Year)	2 years 8 months 7 days	2 years 1 month
Outstanding, Aggregate Intrinsic Value	$ 21,885
Performance Addition, Stock Options (in shares)	0
Performance Addition, Weighted Average Exercise Price per Share (in dollars per share)	$ 0
Performance Addition, fair market value per share (in dollars per share)	0
Performance Addition, Weighted Average Grant Date Fair Value per Share (in dollars per share)	$ 0
Performance Addition, Weighted Average Remaining Contractual Life (Year)	0 years
Performance Addition, Aggregate Intrinsic Value	$ 0
Awarded, Stock Options (in shares)	2,500
Awarded, Weighted Average Exercise Price per Share (in dollars per share)	$ 76.86
Awarded, fair market value per share (in dollars per share)	76.86
Awarded, Weighted Average Grant Date Fair Value per Share (in dollars per share)	$ 52.66
Awarded, Weighted Average Remaining Contractual Life (Year)	9 years 10 months 2 days
Awarded, weighted average remaining vesting term (Year)	3 years
Awarded, Aggregate Intrinsic Value	$ 0
Forfeited, Stock Options (in shares)	12,480
Forfeited, Weighted Average Exercise Price per Share (in dollars per share)	$ 32.26
Forfeited, Weighted Average Grant Date Fair Value per Share (in dollars per share)	$ 21
Forfeited, Aggregate Intrinsic Value	$ 561
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)	$ 0
Exercised / Released, Stock Options (in shares)	3,720
Exercised / Released, Weighted Average Exercise Price per Share (in dollars per share)	$ 15.62
Exercised / Released, fair market value per share (in dollars per share)	15.62
Exercised / Released, Weighted Average Grant Date Fair Value per Share (in dollars per share)	$ 8.49
Exercised / Released, Aggregate Intrinsic Value	$ 245
Outstanding, Stock Options (in shares)	446,943	460,643
Outstanding, Weighted Average Exercise Price per Share (in dollars per share)	$ 27.31	$ 27.08
Ending Outstanding, fair market value per share (in dollars per share)	27.31	27.08
Outstanding, Weighted Average Grant Date Fair Value per Share (in dollars per share)	$ 15.43	$ 15.32
Outstanding, Aggregate Intrinsic Value	$ 21,156	$ 21,885
Ending Vested, Stock Options (in shares)	159,946
Ending Vested, Weighted Average Exercise Price per Share (in dollars per share)	$ 18.15
Ending Vested, fair market value per share (in dollars per share)	18.15
Ending Vested, Weighted Average Grant Date Fair Value per Share (in dollars per share)	$ 9.15
Vested, Weighted Average Remaining Contractual Life (Year)	6 years 4 months 24 days
Vested, Aggregate Intrinsic Value	$ 9,034
Ending UnVested, Stock Options (in shares)	286,997
Ending UnVested, Weighted Average Exercise Price per Share (in dollars per share)	$ 32.42
Ending UnVested, fair market value per share (in dollars per share)	32.42
Ending UnVested, Weighted Average Grant Date Fair Value per Share (in dollars per share)	$ 18.93
Nonvested, Weighted Average Remaining Contractual Life (Year)	8 years 7 months 20 days
UnVested, Aggregate Intrinsic Value	$ 12,121
Vested and Expected to Vest, Stock Options (in shares)	446,943
Vested and Expected to Vest, Weighted Average Exercise Price per Share (in dollars per share)	$ 27.31
Vested and Expected to Vest, fair market value per share (in dollars per share)	27.31
Vested and Expected to Vest, Weighted Average Grant Date Fair Value per Share (in dollars per share)	$ 15.43
Vested and Expected to Vest, Weighted Average Remaining Contractual Life (Year)	7 years 10 months 2 days
Vested and Expected to Vest, Aggregate Intrinsic Value	$ 21,156
Exercisable, Stock Options (in shares)	159,946
Exercisable, Weighted Average Exercise Price per Share (in dollars per share)	$ 18.15
Exercisable, fair market value per share (in dollars per share)	18.15
Exercisable, Weighted Average Grant Date Fair Value per Share (in dollars per share)	$ 9.15
Exercisable, Weighted Average Remaining Contractual Life (Year)	6 years 4 months 24 days
Exercisable, Aggregate Intrinsic Value	$ 9,034