Noninterest Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Other income	$ 322	$ 315
Total noninterest income	7,012	5,919
Loan fees
Disaggregation of Revenue [Line Items]
Noninterest income within scope of ASC 606	347	807
Deposit fees
Disaggregation of Revenue [Line Items]
Noninterest income within scope of ASC 606	1,833	1,671
Debit interchange income
Disaggregation of Revenue [Line Items]
Noninterest income within scope of ASC 606	124	137
Credit card interchange income
Disaggregation of Revenue [Line Items]
Noninterest income within scope of ASC 606	1,765	1,740
Gain on loan sales, net
Disaggregation of Revenue [Line Items]
Noninterest income within scope of ASC 606	1,077	577
Investment securities gain (loss), net
Disaggregation of Revenue [Line Items]
Noninterest income within scope of ASC 606	836	77
Increase in cash surrender value of bank-owned life insurance
Disaggregation of Revenue [Line Items]
Noninterest income within scope of ASC 606	708	595
Investment services revenue
Disaggregation of Revenue [Line Items]
Other income	229	226
Gain or loss on subsidiary
Disaggregation of Revenue [Line Items]
Other income	68	68
Remaining other income
Disaggregation of Revenue [Line Items]
Other income	$ 25	$ 21