Loans by Type (Summary of Loan Categories) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Participating Mortgage Loans [Line Items]
Loans	$ 658,090	$ 664,866
Commercial and Industrial [Member]
Participating Mortgage Loans [Line Items]
Loans	213,942	214,767
Real Estate Commercial Mortgage [Member]
Participating Mortgage Loans [Line Items]
Loans	94,485	104,779
Real Estate Commercial Construction [Member]
Participating Mortgage Loans [Line Items]
Loans	14,919	6,325
Real Estate Church Related Mortgage [Member]
Participating Mortgage Loans [Line Items]
Loans	322,614	321,168
Real Estate Church Related Construction [Member]
Participating Mortgage Loans [Line Items]
Loans	7,907	11,152
Industrial Revenue Bonds [Member]
Participating Mortgage Loans [Line Items]
Loans	4,191	6,639
Other Loan [Member]
Participating Mortgage Loans [Line Items]
Loans	$ 32	$ 36