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Summary of Significant Accounting Policies (Details 5) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Future estimated amortization expense
2012 (six months)	$ 70
2013	334
2014	85
2015	16
2016	16
Thereafter	132
Total	$ 653	$ 745

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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