Summary of Significant Accounting Policies - Earnings per share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Earnings Per Share
Net income	$ 1,931	$ 1,820	$ 5,717	$ 5,553
Less allocated earnings on non-vested restricted stock	(37)	(35)	(56)	(61)
Less allocated dividends on non-vested restricted stock	(52)	(52)	(206)	(191)
Net income allocated to common stockholders	$ 1,842	$ 1,733	$ 5,455	$ 5,301
Weighted Average Shares, Basic	5,486,221	5,621,393	5,494,172	5,584,250
Weighted Average Shares, Diluted	5,486,221	5,621,393	5,494,172	5,584,250
Basic earnings per share (in dollars per share)	$ 0.34	$ 0.31	$ 0.99	$ 0.95
Diluted earnings per share (in dollars per share)	$ 0.34	$ 0.31	$ 0.99	$ 0.95