Other Operating Income and Expense - Other Operating Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Other Income And Expenses [Abstract]
Bank-owned life insurance	$ 433	$ 431
Auto Club revenue	126	220
ATM fee income	479	442
Wire transfer fees	56	50
Gain on sales of premises and equipment and other assets	324
Other income	247	434
Total	$ 1,665	$ 1,577