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Stock-Based Compensation (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Option term			10 years
Options vesting period			5 years
Stock-based compensation expense	$ 404	$ 424	$ 600	$ 564

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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