Commitments and Contingent Liabilities (Off-Balance Sheet Risks) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Fixed Rate [Member] | Standby Letters of Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Amounts commitments to extend credit	$ 3,704	$ 3,670
Commitments to Extend Credit [Member] | Fixed Rate [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Amounts commitments to extend credit	23,914	31,496
Commitments to Extend Credit [Member] | Variable Rate [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Amounts commitments to extend credit	$ 163,898	$ 204,072