Troubled Debt Restructurings (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($) contract	Dec. 31, 2017 USD ($) contract	Dec. 31, 2016 contract
Financing Receivable, Modifications [Line Items]
Number of troubled debt restructured loans	19	21
Total troubled debt restructured loans | $	$ 3,800	$ 4,400
Number of contracts in nonaccrual status	2	1
Total of loans in nonaccrual status | $	$ 118	$ 44
Number of contracts	1	1	5
Loan is considered payment default	30 days
Consumer Installment [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts		1
Number of contracts modified by reducing the interest rate		1
Residential Single Family [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts modified by changing the amortization period	1
Number of contracts modified by reducing the payment amount			2
Number of contracts modified by changing payments to interest only			1
Number of contracts modified by changing the amortization period and lowering the interest rate			1
Commercial Real Estate Non-Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts			1
Number of contracts modified by changing the amortization period and lowering the interest rate			1