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Business Combinations (Narrative) (Details) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Jan. 05, 2016 USD ($) property | Dec. 31, 2016 USD ($) | Dec. 31, 2014 USD ($)
Significant Acquisitions and Disposals [Line Items] |  |  |
Common stock issued for acquisition |  | $ 8,100 | $ 5,400
Courier Capital [Member] |  |  |
Significant Acquisitions and Disposals [Line Items] |  |  |
Assets under management | $ 1,200,000 |  |
Consideration including both cash and stock | 9,000 |  |
Common stock issued for acquisition | 8,100 |  |
Cash | 918 |  |
Potential future stock payments | 2,800 |  |
Potential future cash payments | $ 2,200 |  |
Number of properties | property | 2 |  |
Payments to properties | $ 1,300 |  |
Identified intangible assets | 3,928 |  |
Goodwill | $ 6,015 |  |

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- Definition Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination. + 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 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 + Details
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- Definition Fair value at acquisition-date of the assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interests issued by the acquirer, including but not limited to, instruments or interests issued or issuable in consideration for the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463 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 + Details
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