Fair Value (Fair Value on a Nonrecurring Basis) (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired financing receivable, related allowance	$ 667,000	$ 332,000
Decrease in valuation allowance for impaired loans	335,000
Letters of Credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Standby letter of credit	5,700,000	$ 5,600,000
Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Value for real estate appraisal for OREO or substance foreclosure	$ 100,000
Post modification recorded investment discount for selling and closing costs	8.00%
Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Post modification recorded investment discount for selling and closing costs	10.00%
Measurement Input, Discount Rate | Significant Unobservable Inputs (Level 3) | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value inputs, discount rate	0.10
Measurement Input, Discount Rate | Significant Unobservable Inputs (Level 3) | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value inputs, discount rate	0.25