Fair Value Measurements (Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest bearing time deposits with banks	$ 2,700	$ 3,290
Deposits: Interest bearing	411,020	395,665
Long-term debt	45,000	15,000
Other interest bearing liabilities	1,596	1,596
Carrying Reported Amount Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest bearing time deposits with banks	2,700	3,290
Loans, net of allowance for loan losses	404,436	414,597
Deposits: Interest bearing	411,020	395,665
Long-term debt	45,000	15,000
Other interest bearing liabilities	1,596	1,596
Estimate Of Fair Value Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest bearing time deposits with banks	2,700	3,290
Loans, net of allowance for loan losses	405,018	415,195
Deposits: Interest bearing	413,983	395,226
Long-term debt	45,605	14,958
Other interest bearing liabilities	1,597	1,597
Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest bearing time deposits with banks	2,700	3,290
Deposits: Interest bearing	413,983	395,226
Long-term debt	45,605	14,958
Other interest bearing liabilities	1,597	1,597
Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, net of allowance for loan losses	$ 405,018	$ 415,195