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Consolidated Statements of Operations (Parenthetical) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Consolidated Statements Of Operations Parenthetical
Stock-based compensation and settlements included in selling, general and administrative expenses	$ 126,218	$ 374,821

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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