Per Share Information - Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Earnings Per Share [Abstract]
Net income	$ 2,699	$ 2,931	$ 5,676	$ 5,413
Weighted average common shares outstanding for basic EPS (in shares)	4,508,593	4,494,027	4,508,845	4,494,447
Dilutive effect of stock-based awards (in shares)	30,695	19,384	12,246	15,659
Weighted average common and potential common shares for diluted EPS (in shares)	4,539,288	4,513,411	4,521,091	4,510,106
Earnings per common share:
Basic EPS (in usd per share)	$ 0.60	$ 0.65	$ 1.26	$ 1.20
Diluted EPS (in usd per share)	$ 0.60	$ 0.65	$ 1.26	$ 1.20