Equity Incentive Plans (Schedule of Stock-option Expense to be Recognized in the Future) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Share-based Compensation [Abstract]
Stock option expense to be recognized in 2014	$ 830
Stock option expense to be recognized in 2015	605
Stock option expense to be recognized in 2016	308
Stock option expense to be recognized in 2017	11
Total Compensation Cost To Be Recognized, Stock Options	$ 1,754

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

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

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

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Unrecognized cost of unvested options awarded to employees as compensation.

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