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Securities (Amortized Cost and Fair Values of Securities) (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Schedule of Investments [Line Items] |  |
Available for Sale, Amortized Cost | $ 309,289 | $ 138,111
Available-for-sale Securities, Gross Unrealized Gains | 1,051 | 1,909
Available for Sale, Gross Unrealized Losses | (7,776) | (1,169)
Available for Sale, Fair Value | 302,564 | 138,851
Total Debt Securities [Member] |  |
Schedule of Investments [Line Items] |  |
Available for Sale, Amortized Cost | 308,969 | 137,819
Available-for-sale Securities, Gross Unrealized Gains | 947 | 1,817
Available for Sale, Gross Unrealized Losses | (7,776) | (1,169)
Available for Sale, Fair Value | 302,140 | 138,467
U.S. Government Agencies [Member] |  |
Schedule of Investments [Line Items] |  |
Available for Sale, Amortized Cost | 2,005 | 9,275
Available-for-sale Securities, Gross Unrealized Gains |  | 2
Available for Sale, Gross Unrealized Losses | (8) | (108)
Available for Sale, Fair Value | 1,997 | 9,169
States and political subdivisions [Member] |  |
Schedule of Investments [Line Items] |  |
Available for Sale, Amortized Cost | 127,585 | 59,120
Available-for-sale Securities, Gross Unrealized Gains | 884 | 1,747
Available for Sale, Gross Unrealized Losses | (3,368) | (112)
Available for Sale, Fair Value | 125,101 | 60,755
Corporate obligations [Member] |  |
Schedule of Investments [Line Items] |  |
Available for Sale, Amortized Cost | 10,255 | 4,933
Available-for-sale Securities, Gross Unrealized Gains | 37 | 45
Available for Sale, Gross Unrealized Losses | (180) | (4)
Available for Sale, Fair Value | 10,112 | 4,974
Mortgage-backed securities-government sponsored entities [Member] |  |
Schedule of Investments [Line Items] |  |
Available for Sale, Amortized Cost | 169,124 | 64,491
Available-for-sale Securities, Gross Unrealized Gains | 26 | 23
Available for Sale, Gross Unrealized Losses | (4,220) | (945)
Available for Sale, Fair Value | 164,930 | 63,569
Equity securities-financial services [Member] |  |
Schedule of Investments [Line Items] |  |
Available for Sale, Amortized Cost | 320 | 292
Available-for-sale Securities, Gross Unrealized Gains | 104 | 92
Available for Sale, Gross Unrealized Losses | 0 |
Available for Sale, Fair Value | $ 424 | $ 384

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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References 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=65884222&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66010992&loc=d3e26610-111562 + Details
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- Definition Amount before tax of unrealized gain 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 -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27161-111563 + Details
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