Equity Incentive Plans (Schedule of Stock-option Expense to be Recognized in the Future) (Details) $ in Thousands	Dec. 31, 2018 USD ($)
Share-based Compensation [Abstract]
Stock option expense to be recognized in 2019	$ 7
Stock option expense to be recognized in 2020	7
Stock option expense to be recognized in 2021	3
Total Compensation Cost To Be Recognized, Stock Options	$ 17

Share-based Compensation, Stock Option Expense, Recognized in Year Three

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- Definition

Share-based Compensation, Stock Option Expense, Recognized in Year Two

+ References

No definition available.

+ Details

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- Definition

Share-based Compensation, Stock Option Expense, To Be Recognized in One Year

+ References

No definition available.

+ Details

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- Definition

Unrecognized cost of unvested options awarded to employees as compensation.

+ 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=96867065&loc=d3e5070-113901

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- References

No definition available.

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