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Net Income (Loss) Per Common Share Weighted average number of common shares outstanding during the period (Details) (Stock Option)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Stock Option
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options to purchase common stock outstanding (in shares)	400,866	209,500

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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