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Subsequent Events (Narrative) (Details) $ / shares in Units, $ in Thousands | Feb. 21, 2017 | Jan. 13, 2017 USD ($) $ / shares shares | Apr. 22, 2014 shares | Mar. 10, 2017 shares | Apr. 23, 2014 shares
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Subsequent Events [Line Items] |  |  |  |  |
Stock split conversion ratio |  |  | 1.5 |  |
Dividends payable, date declared |  |  | Apr. 22, 2014 |  |
Dividends payable, date of record |  |  | May 05, 2014 |  |
Dividends payable, date to be paid |  |  | May 19, 2014 |  |
Common stock outstanding | shares |  |  | 3,944,290 |  | 5,916,435
Subsequent Event [Member] |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |
Stock split conversion ratio | 1.5 |  |  |  |
Dividends payable, date declared | Feb. 21, 2017 |  |  |  |
Dividends payable, date of record | Mar. 07, 2017 |  |  |  |
Dividends payable, date to be paid | Mar. 21, 2017 |  |  |  |
Common stock outstanding | shares |  |  |  | 15,384,662 |
Subsequent Event [Member] | Lake Sunapee Bank Group [Member] |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |
Number of common shares issued | shares |  | 4,163,853 |  |  |
Fixed exchange ratio |  | 0.497% |  |  |
Stock price | $ / shares |  | $ 34.55 |  |  |
Total consideration paid | $ |  | $ 182,200 |  |  |
Cash paid for fractional shares | $ |  | 28 |  |  |
Total assets from acquisition | $ |  | $ 1,500,000 |  |  |

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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 + Details
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