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Securities Authorized for Issuance Under Equity Compensation Plans (Details Textual) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Securities Authorized For Issuance Under Equity Compensation Plans (Additional Textual)
Stock compensation expense attributable to stock options	$ 5,000	$ 19,000
Stock based compensation attributable to stock award	0	0
Unrecognized compensation expense related to stock options awarded to employees	$ 7,000

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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