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Revenue Recognition (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2018 | Mar. 31, 2017
Revenue from Customers [Abstract] |  |
Revenue from customers | $ 1,621 |
Service Charges [Member] |  |
Revenue from Customers [Abstract] |  |
Revenue from customers | 1,104 | $ 1,058
Overdraft Fees [Member] |  |
Revenue from Customers [Abstract] |  |
Revenue from customers | 367 |
Statement Fees [Member] |  |
Revenue from Customers [Abstract] |  |
Revenue from customers | 54 |
Interchange Revenue [Member] |  |
Revenue from Customers [Abstract] |  |
Revenue from customers | 531 |
ATM Income [Member] |  |
Revenue from Customers [Abstract] |  |
Revenue from customers | 96 |
Other Service Charges [Member] |  |
Revenue from Customers [Abstract] |  |
Revenue from customers | 56 |
Trust [Member] |  |
Revenue from Customers [Abstract] |  |
Revenue from customers | 251 | 221
Brokerage and Insurance [Member] |  |
Revenue from Customers [Abstract] |  |
Revenue from customers | 181 | $ 191
Other [Member] |  |
Revenue from Customers [Abstract] |  |
Revenue from customers | $ 85 |
Revenue [Member] | Product Concentration Risk [Member] | Products and Services Not within the Scope of ASC 606 [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Concentration risk percentage | 89.40% |

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6351-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13531-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6404-108592 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13537-108611 + Details
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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 32 -Paragraph 2A -URI http://asc.fasb.org/extlink&oid=82859839&loc=SL82860478-203043 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130543-203045 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130539-203045 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130545-203045 + Details
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