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Stock Options and Stock-Based Compensation Stock Options and Stock-Based Compensation Narrative (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		12 Months Ended		3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 1995	Dec. 31, 2010 Plan 2010 [Member]	Mar. 31, 2013 Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Capital shares reserved for futre issuance (shares)				400,000
Total share based compensation cost	$ 756
Allocated Share-based Compensation Expense	54	24
Share-based compensation expense not yet recognized	$ 594	$ 256
Shares granted, net of forfeitures (shares)	0		600,000
Plan term					10 years
Percentage of options vesting two years	50.00%
Percentage of options vesting five years	50.00%

X

- Definition

Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Recognized And Not yet Recognized

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- Definition

The percentage of options vesting five years to total option plan as of the balance sheet date if other than 100 percent.

+ References

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- Definition

The percentage of options vesting two years to total option plan as of the balance sheet date if other than 100 percent.

+ References

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period

+ References

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Aggregate number of common shares reserved for future issuance.

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As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.

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- Definition

Net number of share options (or share units) granted during the period.

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