Note 8 - Employee Benefits - Restricted Stock Unit Activity (Details)	6 Months Ended
	Jun. 30, 2024 $ / shares shares
Nonvested Balance (in shares) | shares	19,787
Nonvested, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 15.87
Granted, Restricted Stock Units (in shares) | shares	20,100
Granted, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 16
Vested, Restricted Stock Units (in shares) | shares	(13,977)
Vested, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 29.67
Nonvested Balance (in shares) | shares	25,910
Nonvested, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 15.95