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Borrowings (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Schedule of Federal Home Loan Bank Advances [Line Items]
Other unused lines of credit	$ 5,000
Gross lines of credit at year-end	36,000	$ 36,000
FHLB advances short-term	0
Federal Home Loan Bank advances	0	$ 20,000
FHLB irrevocable letter of credit	15,000
Federal Home Loan Bank of Atlanta [Member]
Schedule of Federal Home Loan Bank Advances [Line Items]
Unused line of credit total	$ 150,200
Available credit to total Bank assets, maximum percentage	20.00%

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Amount of advances or credit lines available from the Federal Home Loan Bank (FHLB).

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.13(3)(a))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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-SubTopic 470
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