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Income Taxes (Details 1) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Income Tax Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |
Income before provision for income tax expense |  |  |  |  |  |  |  |  | $ 11,032 | $ 13,179 | $ 11,696
Tax at statutory federal income tax rate |  |  |  |  |  |  |  |  | 3,751 | 4,481 | 3,977
Tax-exempt income |  |  |  |  |  |  |  |  | (314) | (369) | (348)
State income tax, net of federal tax benefit |  |  |  |  |  |  |  |  | 290 | 376 | 385
Other, net |  |  |  |  |  |  |  |  | 23 | 92 | 28
Total income tax expense | $ 1,052 | $ 1,003 | $ 730 | $ 965 | $ 1,083 | $ 1,377 | $ 1,001 | $ 1,119 | $ 3,750 | $ 4,580 | $ 4,042
Tax at statutory federal income tax rate (in percent) |  |  |  |  |  |  |  |  | 34.00% | 34.00% | 34.00%
Tax-exempt income (in percent) |  |  |  |  |  |  |  |  | (2.85%) | (2.80%) | (2.98%)
State income tax, net of federal tax benefit (in percent) |  |  |  |  |  |  |  |  | 2.63% | 2.85% | 3.30%
Other, net (in percent) |  |  |  |  |  |  |  |  | 0.21% | 0.70% | 0.24%
Provision for income tax expense (in percent) |  |  |  |  |  |  |  |  | 33.99% | 34.75% | 34.56%

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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I) -URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32698-109319 + Details
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