Commitments and Contingencies (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Commitments to Extend Credit [Member]
Off Balance Sheet Commitments [Abstract]
Off-balance sheet risks, amount, liability	$ 919,982	$ 828,539
Letters of Credit [Member]
Off Balance Sheet Commitments [Abstract]
Off-balance sheet risks, amount, liability	$ 20,346	19,108
Letters of Credit [Member] | Minimum [Member]
Off Balance Sheet Commitments [Abstract]
Off balance sheet risks maturity period	1 month
Letters of Credit [Member] | Maximum [Member]
Off Balance Sheet Commitments [Abstract]
Off balance sheet risks maturity period	25 months
Performance Guarantees under Interest Rate Swap Contracts Entered into between our Borrowing Customers and Third Parties [Member]
Off Balance Sheet Commitments [Abstract]
Off-balance sheet risks, amount, liability	$ 1,513	$ 0