Stock Based Compensation (Narrative) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Dec. 31, 2014
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Number of awards granted (in shares)	0
Outstanding number of shares underlying options	1,321,000	1,350,000
Unrecognized stock-based compensation expense	$ 2,810
2014 Equity Incentive Plan [Member]
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Number of awards granted (in shares)	2,769,000
Stock Options [Member]
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Unrecognized stock-based compensation expense	$ 664
Weighted average period for amortization of unrecognized stock-based compensation	1 year 8 months 5 days
Stock Options [Member] \| 2014 Equity Incentive Plan [Member]
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Number of shares authorized for issuance	4,400,000
Shares available for issuance	1,631,000
Stock Options [Member] \| Stock Incentive Plan, 2000 [Member]
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Outstanding number of shares underlying options	87,000
Stock Options [Member] \| Stock Incentive Plan, 2007 [Member]
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Outstanding number of shares underlying options	1,263,000

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Unrecognized cost of unvested options awarded to employees as compensation.

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Gross number of share options (or share units) granted during the period.

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- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(i)-(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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