Fair Value (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value assets liabilities transfers amount between level 1 and level 2	$ 0	$ 0
Impaired loans, unpaid principal balance with allowance recorded	3,657	920
Impaired loans, allowance	436	61
Troubled debt restructurings	4,100	4,600
Other real estate owned measured at fair value less costs to sell	0	0
Write down of other real estate owned	$ 19	68
Maximum maturity period of short term borrowings	90 days
Measured Using Present Value of Cash Flows
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Troubled debt restructurings	$ 513	583
Collateral Dependent Impaired Loans
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impaired loans, unpaid principal balance with allowance recorded	2,300	208
Impaired loans, allowance	368	13
Provision for loan losses	$ 440	$ 134