Quarterly Data (Unaudited) - Summary of Quarterly Data (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]
Interest income	$ 9,987	$ 10,030	$ 10,059	$ 9,845	$ 10,204	$ 9,996	$ 9,780	$ 10,397	$ 39,921	$ 40,377
Interest expense	727	695	747	781	912	1,031	1,157	1,511	2,950	4,611
Net interest income	9,260	9,335	9,312	9,064	9,292	8,965	8,623	8,886	36,971	35,766
Provision for loan and lease losses	493	618	498	401	469	1,046	850	580	2,010	2,945
Net interest income after provision for loan and lease losses	8,767	8,717	8,814	8,663	8,823	7,919	7,773	8,306	34,961	32,821
Non-interest:
Income	865	896	809	951	1,008	1,375	1,330	1,297	3,521	5,010
Expense	7,414	8,547	8,399	8,396	8,477	8,747	8,581	8,494	32,756	34,299
Income before income taxes	2,218	1,066	1,224	1,218	1,354	547	522	1,109
Provision for income taxes	507	229	271	268	309	136	118	262	1,275	825
Net income (loss)	$ 1,711	$ 837	$ 953	$ 950	$ 1,045	$ 411	$ 404	$ 847	$ 4,451	$ 2,707
Earnings per common share:
Basic earnings	$ 0.27	$ 0.13	$ 0.15	$ 0.15	$ 0.16	$ 0.07	$ 0.07	$ 0.13	$ 0.70	$ 0.43
Diluted earnings	$ 0.25	$ 0.13	$ 0.14	$ 0.14	$ 0.15	$ 0.06	$ 0.06	$ 0.13	$ 0.66	$ 0.40