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Securities Available for Sale (Details Textual) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 USD ($) Securities | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($)
Schedule Of Available For Sale Securities [Line Items] |  |  |  |
Tax provision related to net realized gain | [1] | $ (59) | $ (2) | $ (26)
Pledged to secure public deposits and repurchase agreements and Pledge to qualify carrying amount of securities |  | $ 194,000 | 269,000 |
Number of securities not more than 10% of stockholder equities | Securities |  | 0 |  |
Other than temporary impairment charges recognized |  |  | 0 | $ 0
Number of securities | Securities |  | 583 |  |
Number of securities on unrealized loss position | Securities |  | 256 |  |
Farmers Trust Company |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |
Pledged to secure public deposits and repurchase agreements and Pledge to qualify carrying amount of securities |  | $ 100 | $ 100 |
[1] | Pre-tax reclassification adjustments relating to available-for-sale securities are reported in security gains and the tax impact is included in income tax expense on the consolidated statements of income.

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- Definition Amount of restricted 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 860 -SubTopic 30 -Section 50 -Paragraph 1A -Subparagraph (b)(1)(i) -URI http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729 + Details
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- Definition Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=114867106&loc=d3e640-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27357-111563 + Details
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- Definition Amount of other-than-temporary impairment (OTTI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), recognized in earnings. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 8A -URI http://asc.fasb.org/extlink&oid=109979856&loc=SL6284422-111562 + Details
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