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Employee Benefit Plan (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract] |  |  |
Defined contribution maximum annual matching contribution per employee, percent | 3.00% |  |
Defined contribution maximum annual discretionary contribution per employee, percent | 6.00% |  |
Defined contribution plan, employer matching contribution, percent | 3.00% |  |
Defined contribution plan employer matching contribution | $ 621 | $ 573 | $ 398
Defined contribution plan employer discretionary contribution percent | 1.20% | 3.30% | 4.70%
Defined contribution plan, employer discretionary contribution amount | $ 207 | $ 549 | $ 632
Deferred compensation plan compensation expense | 124 | 116 | $ 101
Present value of future payments under the remaining deferred compensation plan liability | $ 987 | $ 863 |

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- Definition Defined Contribution Plan Employer Discretionary Contribution Percent + References No definition available. + Details
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- Definition The compensation expense recognized during the period pertaining to the deferred compensation arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 30 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363 + Details
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- Definition Aggregate carrying value as of the balance sheet date of the liabilities for deferred compensation arrangements. Represents currently earned compensation under cash arrangements (such as a profit-sharing plan, rabbi trust, and employee contract--excluding equity-based arrangements) that is not actually paid until a later date. + References No definition available. + Details
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- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. + References No definition available. + Details
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