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Significant Stock-Based Plan Activity and Stock-Based Compensation (Details) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Stock-Based Compensation Expense [Abstract]
Unrecognized stock-based compensation expense	$ 1,000,000
Weighted average remaining vesting period	3 years
Selling, General and Administrative [Member]
Stock-Based Compensation Expense [Abstract]
Stock-based compensation expense	$ 102,000	$ 134,000

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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