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Securities Available For Sale (Narrative) (Details) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 USD ($) security shares | Dec. 31, 2013 USD ($) | Dec. 31, 2014 USD ($)
Schedule of Available for sale Securities [Line Items] |  |  |  |
Total other-than-temporary impairment ("OTTI") losses |  |  | $ 359 |
OTTI recognized in pre-tax earnings amount, net of tax |  | $ 462 |  | $ 478
Non-credit portion of OTTI losses (before taxes) | [1] |  | 110 |
Net OTTI losses recognized in earnings |  |  | $ 249 |
Unrealized losses on securities |  | 3,041 |  | 2,332
US Government-Sponsored Enterprises [Member] |  |  |  |
Schedule of Available for sale Securities [Line Items] |  |  |  |
Unrealized losses on securities |  | 2,155 |  | 1,537
US Government Agency [Member] |  |  |  |
Schedule of Available for sale Securities [Line Items] |  |  |  |
Unrealized losses on securities |  | $ 547 |  | 529
Private Label [Member] |  |  |  |
Schedule of Available for sale Securities [Line Items] |  |  |  |
Number of private label MBS securities held | security |  | 11 |  |
Unrealized gain, net of tax |  | $ 462 |  |
Unrealized losses on securities |  | 11 |  | 14
Obligations Of States And Political Subdivisions Thereof [Member] |  |  |  |
Schedule of Available for sale Securities [Line Items] |  |  |  |
Unrealized losses on securities |  | 328 |  | $ 252
Accumulated Other-than-Temporary Impairment Attributable to Parent [Member] | Private Label [Member] |  |  |  |
Schedule of Available for sale Securities [Line Items] |  |  |  |
Amortized cost included OTTI losses |  | $ 1,236 |  |
Bar Harbor Bank & Trust [Member] | Visa Class B [Member] |  |  |  |
Schedule of Available for sale Securities [Line Items] |  |  |  |
Number of Visa Class shares owned | shares |  | 11,623 |  |
Bar Harbor Bank & Trust [Member] | Visa Class A [Member] |  |  |  |
Schedule of Available for sale Securities [Line Items] |  |  |  |
Number of Visa Class shares owned | shares |  | 19,158 |  |
Conversion ratio, Visa Class |  | 1.648 |  |
[1] | Included in other comprehensive income, net of taxes

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- Definition Amount before tax of unrealized loss 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 (c) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 + Details
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