Investments (Unrealized Gain (loss) On Investments) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	$ 127,182	$ 143,895
Gross unrealized gains	1,200	1,554
Gross unrealized losses	(1,046)	(1,574)
Available for sale	127,336	143,875
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	164	164
Gross unrealized gains	201	126
Available for sale	365	290
U.S. Government And Agency Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	11,451	12,598
Gross unrealized gains	64	148
Gross unrealized losses	(43)	(26)
Available for sale	11,472	12,720
Municipal Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	57,374	62,763
Gross unrealized gains	650	793
Gross unrealized losses	(252)	(571)
Available for sale	57,772	62,985
Trust Preferred Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	6,000	5,979
Gross unrealized losses	(183)	(518)
Available for sale	5,817	5,461
Agency Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	51,307	61,305
Gross unrealized gains	197	431
Gross unrealized losses	(567)	(452)
Available for sale	50,937	61,284
Private-Label Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	858	1,053
Gross unrealized gains	88	56
Gross unrealized losses		(5)
Available for sale	946	1,104
Asset-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	28	33
Gross unrealized losses	(1)	(2)
Available for sale	$ 27	$ 31

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=75030427&loc=d3e22054-111558

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
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