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Equity Plan - Unrecognized Compensation Cost - Nonvested Stock Options (Details) - Options $ in Thousands	3 Months Ended
	Mar. 31, 2017 USD ($)
Unrecognized Compensation Cost
Total unrecognized compensation cost related to nonvested stock options granted	$ 1,164
Expected weighted-average period for recognition of compensation costs related to nonvested stock options	2 years 4 months 21 days

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- References

No definition available.

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- Definition

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.

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

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- Definition

Unrecognized cost of unvested options awarded to employees as compensation.

+ References

No definition available.

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