Loans by Type (Schedule of the Credit Exposure of the Loan Portfolio) (Details) - USD ($) $ in Thousands		Mar. 31, 2018	Dec. 31, 2017
Participating Mortgage Loans [Line Items]
Loans		$ 702,000	$ 686,231
Loans Subject To Normal Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[1]	699,596	683,190
Performing Loans Subject To Special Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[2]	2,404	3,041
Nonperforming Loans Subject To Special Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[2]
Commercial and Industrial [Member]
Participating Mortgage Loans [Line Items]
Loans		256,381	236,394
Commercial and Industrial [Member] | Loans Subject To Normal Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[1]	254,932	234,271
Commercial and Industrial [Member] | Performing Loans Subject To Special Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[2]	1,449	2,123
Commercial and Industrial [Member] | Nonperforming Loans Subject To Special Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[2]
Real Estate Commercial Mortgage [Member]
Participating Mortgage Loans [Line Items]
Loans		90,742	94,675
Real Estate Commercial Mortgage [Member] | Loans Subject To Normal Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[1]	89,882	93,788
Real Estate Commercial Mortgage [Member] | Performing Loans Subject To Special Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[2]	860	887
Real Estate Commercial Mortgage [Member] | Nonperforming Loans Subject To Special Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[2]
Real Estate Commercial Construction [Member]
Participating Mortgage Loans [Line Items]
Loans		15,708	9,359
Real Estate Commercial Construction [Member] | Loans Subject To Normal Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[1]	15,708	9,359
Real Estate Commercial Construction [Member] | Performing Loans Subject To Special Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[2]
Real Estate Commercial Construction [Member] | Nonperforming Loans Subject To Special Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[2]
Real Estate Church Related Mortgage [Member]
Participating Mortgage Loans [Line Items]
Loans		307,654	316,073
Real Estate Church Related Mortgage [Member] | Loans Subject To Normal Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[1]	307,654	316,042
Real Estate Church Related Mortgage [Member] | Performing Loans Subject To Special Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[2]		31
Real Estate Church Related Mortgage [Member] | Nonperforming Loans Subject To Special Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[2]
Real Estate Church Related Construction [Member]
Participating Mortgage Loans [Line Items]
Loans		28,932	25,948
Real Estate Church Related Construction [Member] | Loans Subject To Normal Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[1]	28,932	25,948
Real Estate Church Related Construction [Member] | Performing Loans Subject To Special Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[2]
Real Estate Church Related Construction [Member] | Nonperforming Loans Subject To Special Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[2]
Industrial Revenue Bonds [Member]
Participating Mortgage Loans [Line Items]
Loans		2,557	3,374
Industrial Revenue Bonds [Member] | Loans Subject To Normal Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[1]	2,557	3,374
Industrial Revenue Bonds [Member] | Performing Loans Subject To Special Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[2]
Industrial Revenue Bonds [Member] | Nonperforming Loans Subject To Special Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[2]
Other Financing Receivable [Member]
Participating Mortgage Loans [Line Items]
Loans		25	408
Other Financing Receivable [Member] | Loans Subject To Normal Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[1]	26	408
Other Financing Receivable [Member] | Performing Loans Subject To Special Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[2]
Other Financing Receivable [Member] | Nonperforming Loans Subject To Special Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[2]

[1] Loans subject to normal monitoring involve borrowers of acceptable-to-strong credit quality and risk, who have the apparent ability to satisfy their loan obligations.

[2] Loans subject to special monitoring possess some credit deficiency or potential weakness which requires a high level of management attention.