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Business Combination, Goodwill and Intangibles Goodwill (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013
Goodwill [Roll Forward] |  |
Beginning goodwill, gross | $ 3,472 us-gaap_GoodwillGross | $ 3,472 us-gaap_GoodwillGross
Beginning acculumlated impairment losses | 0 us-gaap_GoodwillImpairedAccumulatedImpairmentLoss | 0 us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
Balance at the beginning of the year | 3,472 us-gaap_Goodwill | 3,472 us-gaap_Goodwill
Goodwill acquired during the year | 9,252 us-gaap_GoodwillAcquiredDuringPeriod | 0 us-gaap_GoodwillAcquiredDuringPeriod
Ending goodwill, gross | 12,724 us-gaap_GoodwillGross | 3,472 us-gaap_GoodwillGross
Ending accumulated impairment losses | 0 us-gaap_GoodwillImpairedAccumulatedImpairmentLoss | 0 us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
Balance at end of year | $ 12,724 us-gaap_Goodwill | $ 3,472 us-gaap_Goodwill

X
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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Period Type: | instant

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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Definition Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a,h) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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X
- Definition Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a,h) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Details
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Period Type: | duration