Investment Securities (Amortized Cost and Fair Values of Securities ) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 370,313	$ 276,849
Gross Unrealized Gains	968	4,061
Gross Unrealized Losses	(10,534)	(3,532)
Fair Value, available for sale	360,747	277,378
Mortgage-backed securities, Government sponsored agencies
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	101,729	68,335
Gross Unrealized Gains	63	225
Gross Unrealized Losses	(3,208)	(762)
Fair Value, available for sale	98,584	67,798
Collateralized mortgage obligations, Government sponsored agencies
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	112,945	88,488
Gross Unrealized Gains	11	58
Gross Unrealized Losses	(3,674)	(1,296)
Fair Value, available for sale	109,282	87,250
Municipals
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	148,141	107,060
Gross Unrealized Gains	861	3,709
Gross Unrealized Losses	(2,775)	(274)
Fair Value, available for sale	146,227	110,495
Corporate obligations
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	7,498	12,966
Gross Unrealized Gains	33	69
Gross Unrealized Losses	(877)	(1,200)
Fair Value, available for sale	$ 6,654	$ 11,835

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
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-Section 50
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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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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-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.

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