Fair Values (Narrative) (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total recorded investment	$ 8,230,000	$ 7,822,000
Recorded Investment, with allowance recorded	718,000	1,808,000
Fair value of additional impaired financing receivable recorded investment	201,000	285,000
Impaired Financing Receivable, Related Allowance	201,000	285,000
Additional impaired financing receivable	895,000
Partially charged down loans	95,000
Total fair value of impaired loans	1,300,000	1,500,000
Other real estate owned & other repossessed property	3,466,000	5,051,000
OREO	3,300,000	4,900,000
Other repossessed property	142,000	142,000
Other Real Estate, Valuation Adjustments		0
Transfers from level 1 to level 2	0
Transfers from level 2 to level 1	0
Estimated Fair Value [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair value of additional impaired financing receivable recorded investment	800,000
Impaired Financing Receivable, Related Allowance	517,000	$ 1,500,000
Other Real Estate Owned [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
OREO	623,000
Other Real Estate, Valuation Adjustments	97,000
Other Real Estate Owned [Member] | Estimated Fair Value [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
OREO	$ 526,000