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Restricted Stock Units and Long Term Incentive Plan (Details) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
RSUs
Share-Based Compensation
Compensation expense included in selling, general and administrative expense	$ 46,000	$ 71,000
Unrecognized compensation costs	80,000		99,000
Cash Settlement Amount	$ 0	$ 0
Common stock
Share-Based Compensation
Closing price per share used for RSU liability calculation (in dollars per share)	$ 2.05		$ 1.85

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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