Securities (Amortized Cost and Fair Values of Securities) (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Schedule of Investments [Line Items]
Available for Sale, Amortized Cost	$ 303,470	$ 309,289
Available-for-sale Securities, Gross Unrealized Gains	1,725	1,051
Available for Sale, Gross Unrealized Losses	(4,528)	(7,776)
Available for Sale, Fair Value	300,667	302,564
Pledged Financial Instruments, Not Separately Reported, Securities	226,759		$ 110,266
Total Debt Securities [Member]
Schedule of Investments [Line Items]
Available for Sale, Amortized Cost	303,178	308,969
Available-for-sale Securities, Gross Unrealized Gains	1,591	947
Available for Sale, Gross Unrealized Losses	(4,528)	(7,776)
Available for Sale, Fair Value	300,241	302,140
US Treasury Securities [Member]
Schedule of Investments [Line Items]
Available for Sale, Amortized Cost	2,003	2,005
Available-for-sale Securities, Gross Unrealized Gains	0
Available for Sale, Gross Unrealized Losses	(9)	(8)
Available for Sale, Fair Value	1,994	1,997
States and political subdivisions [Member]
Schedule of Investments [Line Items]
Available for Sale, Amortized Cost	128,343	127,585
Available-for-sale Securities, Gross Unrealized Gains	1,510	884
Available for Sale, Gross Unrealized Losses	(1,215)	(3,368)
Available for Sale, Fair Value	128,638	125,101
Corporate obligations [Member]
Schedule of Investments [Line Items]
Available for Sale, Amortized Cost	10,162	10,255
Available-for-sale Securities, Gross Unrealized Gains	44	37
Available for Sale, Gross Unrealized Losses	(92)	(180)
Available for Sale, Fair Value	10,114	10,112
Mortgage-backed securities-government sponsored entities [Member]
Schedule of Investments [Line Items]
Available for Sale, Amortized Cost	162,670	169,124
Available-for-sale Securities, Gross Unrealized Gains	37	26
Available for Sale, Gross Unrealized Losses	(3,212)	(4,220)
Available for Sale, Fair Value	159,495	164,930
Equity securities-financial services [Member]
Schedule of Investments [Line Items]
Available for Sale, Amortized Cost	292	320
Available-for-sale Securities, Gross Unrealized Gains	134	104
Available for Sale, Gross Unrealized Losses	0	0
Available for Sale, Fair Value	$ 426	$ 424

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
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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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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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Sum of the carrying amounts as of the date of the latest financial statement presented of securities which are owned but transferred to another party to serve as collateral to partially or fully secure a debt obligation, repurchase agreement or other current or potential obligation, and for which the transferee is not permitted to sell or re-pledge them to an unrelated party.

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