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Significant Stock-Based Plan Activity and Stock-Based Compensation (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Stock-Based Compensation Expense [Abstract]
Unrecognized stock-based compensation expense	$ 1,800,000		$ 1,800,000
Weighted average remaining vesting period			3 years 1 month 6 days
Selling, general and administrative [Member]
Stock-Based Compensation Expense [Abstract]
Total stock-based compensation expense	$ 218,000	$ 88,000	$ 529,000	$ 337,000

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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