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Per Common Share Amounts (Details)	3 Months Ended
Per Common Share Amounts (Details)	Mar. 31, 2013	Mar. 31, 2012
Per Common Share Amounts
Dilutive common share equivalents	0	0

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would have been antidilutive for the period presented.

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