Loans by Type (Schedule of the Credit Exposure of the Loan Portfolio) (Details) - USD ($) $ in Thousands		Jun. 30, 2018	Dec. 31, 2017
Participating Mortgage Loans [Line Items]
Loans		$ 714,861	$ 686,231
Loans Subject To Normal Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[1]	713,597	683,190
Performing Loans Subject To Special Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[2]	1,264	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		257,236	236,394
Commercial and Industrial [Member] | Loans Subject To Normal Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[1]	256,231	234,271
Commercial and Industrial [Member] | Performing Loans Subject To Special Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[2]	1,005	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		88,887	94,675
Real Estate Commercial Mortgage [Member] | Loans Subject To Normal Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[1]	88,715	93,788
Real Estate Commercial Mortgage [Member] | Performing Loans Subject To Special Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[2]	172	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		21,347	9,359
Real Estate Commercial Construction [Member] | Loans Subject To Normal Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[1]	21,347	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		310,402	316,073
Real Estate Church Related Mortgage [Member] | Loans Subject To Normal Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[1]	310,315	316,042
Real Estate Church Related Mortgage [Member] | Performing Loans Subject To Special Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[2]	87	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		35,212	25,948
Real Estate Church Related Construction [Member] | Loans Subject To Normal Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[1]	35,212	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		1,739	3,374
Industrial revenue bonds [Member] | Loans Subject To Normal Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[1]	1,739	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		38	408
Other Financing Receivable [Member] | Loans Subject To Normal Monitoring [Member]
Participating Mortgage Loans [Line Items]
Loans	[1]	38	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.