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Securities Available for Sale (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | $ 407,276 | $ 392,397
Gross Unrealized Gains | 2,231 | 4,037
Gross Unrealized Losses | (7,317) | (3,497)
Fair Value | 402,190 | 392,937
Corporate bonds |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 1,206 | 1,238
Gross Unrealized Gains | 0 | 4
Gross Unrealized Losses | (18) | (8)
Fair Value | 1,188 | 1,234
Small Business Administration |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 12,292 | 14,608
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | (362) | (396)
Fair Value | 11,930 | 14,212
U.S. Treasury and U.S. government sponsored entities |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 6,111 | 8,986
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | (102) | (69)
Fair Value | 6,009 | 8,917
State and political subdivisions |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 211,762 | 188,032
Gross Unrealized Gains | 2,075 | 3,614
Gross Unrealized Losses | (1,893) | (643)
Fair Value | 211,944 | 191,003
Mortgage-backed securities - residential |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 154,130 | 161,635
Gross Unrealized Gains | 84 | 419
Gross Unrealized Losses | (4,167) | (1,604)
Fair Value | 150,047 | 160,450
Collateralized mortgage obligations |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 21,775 | 17,898
Gross Unrealized Gains | 72 | 0
Gross Unrealized Losses | (775) | (777)
Fair Value | $ 21,072 | $ 17,121

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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563 + Details
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- Definition Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563 + Details
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- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563 + Details
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