Note 12 - Employee Benefits - Option Activity (Details)	12 Months Ended
	Dec. 31, 2021 $ / shares shares
Balance, shares (in shares) | shares	711,780
Balance, weighted average exercise price (in dollars per share) | $ / shares	$ 11.47
Granted, shares (in shares) | shares	429,500
Granted, weighted average exercise price (in dollars per share) | $ / shares	$ 17.00
Exercised, shares (in shares) | shares	(98,512)
Exercised, weighted average exercise price (in dollars per share) | $ / shares	$ 8.88
Forfeited, shares (in shares) | shares	(13,302)
Forfeited, weighted average exercise price (in dollars per share) | $ / shares	$ 14.46
Balance, shares (in shares) | shares	1,029,466
Balance, weighted average exercise price (in dollars per share) | $ / shares	$ 14.00
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number (in shares) | shares	398,415
Balance, weighted average exercise price (in dollars per share) | $ / shares	$ 10.97