| **Income Taxes**                     | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
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| **Income Tax Disclosure [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| Income Taxes                         | Income TaxesThe current and deferred components of income tax expense (benefit) were as follows:For the years ended December 31,2013 2012 2011Federal income tax     Current$3,234,000 $3,239,000 $2,828,000Deferred(56,000) (108,000) 730,000 3,178,000 3,131,000 3,558,000State franchise tax247,000 240,000 233,000 $3,425,000 $3,371,000 $3,791,000The actual tax expense differs from the expected tax expense (computed by applying the applicable U.S. Federal corporate income tax rate to income before income taxes) as follows:For the years ended December 31,2013 2012 2011Expected tax expense$5,736,000 $5,621,000 $5,654,000Non-taxable income(2,326,000) (2,096,000) (1,794,000)State franchise tax, net of federal tax benefit160,000 156,000 152,000Tax credits(414,000) (414,000) (383,000)Other269,000 104,000 162,000 $3,425,000 $3,371,000 $3,791,000Deferred tax assets and liabilities are classified as other assets and other liabilities in the consolidated balance sheets. No valuation allowance is deemed necessary for the deferred tax asset. Items that give rise to the deferred income tax assets and liabilities and the tax effect of each at December 31, 2013 and 2012 are as follows: 2013 2012Allowance for loan losses$4,030,000 $4,375,000OREO116,000 131,000Accrued pension and post-retirement1,334,000 1,412,000Unrealized loss on securities available for sale3,549,000 —Goodwill206,000 —Tax credits, carried forward539,000 103,000Other assets163,000 89,000Total deferred tax asset9,937,000 6,110,000Net deferred loan costs(884,000) (770,000)Depreciation(2,672,000) (2,326,000)Unrealized gain on securities available for sale— (4,275,000)Mortgage servicing rights(405,000) (303,000)Core deposit intangible(99,000) (203,000)Investment in flow through entities(361,000) (323,000)Prepaid expense(316,000) (422,000)Total deferred tax liability(4,737,000) (8,622,000)Net deferred tax asset (liability)$5,200,000 $(2,512,000)At December 31, 2013, the Company held investments in two limited partnerships with related New Market Tax Credits. These investments are carried at cost and amortized on the effective yield method. The tax credits from these investments are estimated at $636,000 and $636,000 for each of the years ended December 31, 2013 and 2012, respectively, and are recorded as a reduction of income tax expense. Amortization of the investments in the limited partnerships totaled $520,000 and $476,000 for the years ended December 31, 2013 and 2012, respectively, and is recognized as a component of income tax expense in the consolidated statements of income. The carrying value of these investments was $1,026,000 and $1,546,000 at December 31, 2013 and 2012, respectively, and is recorded in other assets. The Company's total exposure to these limited partnerships was $4,526,000 and $5,046,000, at December 31, 2013 and 2012, respectively, which is comprised of the Company's equity investment in the limited partnerships and the balance of a participated loan receivable.FASB ASC Topic 740 "Income Taxes" defines the criteria that an individual tax position must satisfy for some or all of the benefits of that position to be recognized in a company's financial statements. Topic 740 prescribes a recognition threshold of more-likely-than-not, and a measurement attribute for all tax positions taken or expected to be taken on a tax return, in order for those tax positions to be recognized in the financial statements. The Company is currently open to audit under the statute of limitations by the Internal Revenue Service for the years ended December 31, 2010 through 2012. |

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| - Definition
The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319
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