Deposits - Summary of Deposits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Deposits, by Type [Abstract]
Savings	$ 168,983	$ 143,412
Transaction accounts	276,496	262,152
Money market accounts	248,086	273,344
Certificates of deposit and jumbo certificates	308,080	261,352
Total Deposits	$ 1,001,645	$ 940,260
Weighted Average Rate of Deposits, by Type [Abstract] [Abstract]
Weighted-Average Interest Rate, Savings	0.86%	0.74%
Weighted-Average Interest Rate, Transaction accounts	0.03%	0.05%
Weighted-Average Interest Rate, Insured money market accounts	0.46%	0.43%
Weighted-Average Interest Rate, Certificates of deposit and jumbo certificates	1.85%	1.86%
Weighted- Average Interest Rate	0.84%	0.77%
Time Deposits, Fiscal Year Maturity [Abstract]
Within one year or less	$ 241,127
After one year through two years	42,274
After two years through three years	11,167
After three years through four years	6,593
After four years through five years	6,919
After five years	0
Total time deposits	308,080	$ 261,352
Interest Expense, Deposits [Abstract]
Savings	1,478	369
Transaction accounts	118	74
Money market accounts	1,285	1,142
Certificates of deposit and jumbo certificates	5,423	3,765
Interest expense	$ 8,304	$ 5,350