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Earnings Per Share (Details Textual)	3 Months Ended
Earnings Per Share (Details Textual)	Mar. 31, 2013
Disclosure Earnings Per Share Details Textual [Line Items]
Stock options not considered in computing of diluted earnings per share	5,000

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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