Federal Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Tax Credit Carryforward [Line Items]
Federal corporate income tax rate		34.00%	34.00%	34.00%
Tax Cuts and Jobs Act of 2017, Revaluation of deferred tax assets		$ 2,291
Tax Credit Carryforward, Amount		823
Capital loss carryover		173	$ 280
Tax Credit Carryforward, Valuation Allowance		173
Penalties and interest expense		0	$ 0	$ 0
Uncertain tax positions		0
Scenario, Plan [Member]
Tax Credit Carryforward [Line Items]
Federal corporate income tax rate	21.00%
Expiring 2018 [Member]
Tax Credit Carryforward [Line Items]
Tax Credit Carryforward, Amount		$ 663