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Recently issued accounting pronouncements	6 Months Ended
Recently issued accounting pronouncements	Jun. 30, 2013
Accounting Changes And Error Corrections [Abstract]
Recently issued accounting pronouncements	3. Recently issued accounting pronouncements The Company evaluates the pronouncements of authoritative accounting organizations, including the Financial Accounting Standards Board (FASB), to determine the impact of new pronouncements on GAAP and the Company. There were no new accounting pronouncements that have been issued or adopted during the three months ended June 30, 2013, that are expected to have a significant effect on the Company’s unaudited condensed consolidated financial statements.