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Securities (Fair Value and Gross Unrealized Losses for Securities Available for Sale) (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
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Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] |  |
Fair Value, Less than 12 months | $ 22,226 | $ 20,411
Fair Value, 12 months or more | 69,540 | 30,433
Fair Value, Total | 91,766 | 50,844
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract] |  |
Gross Unrealized Losses, Less than 12 months | 390 | 144
Gross Unrealized Losses, 12 months or more | 2,198 | 646
Gross Unrealized Losses, Total | 2,588 | 790
Obligations of U.S. government corporations and agencies [Member] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] |  |
Fair Value, Less than 12 months | 1,973 | 4,455
Fair Value, 12 months or more | 13,710 | 7,810
Fair Value, Total | 15,683 | 12,265
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract] |  |
Gross Unrealized Losses, Less than 12 months | 6 | 58
Gross Unrealized Losses, 12 months or more | 475 | 200
Gross Unrealized Losses, Total | 481 | 258
Mortgage-backed securities [Member] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] |  |
Fair Value, Less than 12 months | 16,659 | 11,885
Fair Value, 12 months or more | 42,966 | 17,931
Fair Value, Total | 59,625 | 29,816
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract] |  |
Gross Unrealized Losses, Less than 12 months | 332 | 59
Gross Unrealized Losses, 12 months or more | 1,306 | 287
Gross Unrealized Losses, Total | 1,638 | 346
Obligations of states and political subdivisions [Member] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] |  |
Fair Value, Less than 12 months | 3,594 | 4,071
Fair Value, 12 months or more | 12,864 | 4,692
Fair Value, Total | 16,458 | 8,763
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract] |  |
Gross Unrealized Losses, Less than 12 months | 52 | 27
Gross Unrealized Losses, 12 months or more | 417 | 159
Gross Unrealized Losses, Total | $ 469 | $ 186

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- Definition Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for twelve months or longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27290-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27337-111563 + Details
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- Definition Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale in a continuous loss position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27337-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27290-111563 + Details
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