Loans - PPP (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2020 USD ($) customer	Dec. 31, 2020 USD ($)
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	$ 517,467	$ 501,909
Percentage of loans	100.00%	100.00%
PPP Loans
Loans and Leases Receivable Disclosure [Line Items]
Amount of loan provided	$ 2,400	$ 2,400
Number of customers | customer	56
Small Business Administration, CARES Act, Monetary Relief [Member]
Loans and Leases Receivable Disclosure [Line Items]
Amount of loans modified into PPP	$ 49,800
Small Business Administration, CARES Act, Monetary Relief [Member] | Payment Deferral
Loans and Leases Receivable Disclosure [Line Items]
Total Loans		$ 3,000
Period of principal and interest deferment		3 months
Investor Loans
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	$ 114,100	$ 129,700
Percentage of loans	22.00%	25.80%
First Mortgage Investor Loans
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	$ 113,600	$ 129,300
Home Equity And HELOC Investor Loans
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	507	444,000
Mortgage Loan Serviced To Others
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	$ 26,600	$ 23,500