Earnings (Loss) per Common Share (Details)	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Stock options
Antidilutive securities excluded from computation of diluted earnings (loss) per common share
Antidilutive securities excluded from computation of diluted earnings per share	942,500	1,225,465
Restricted Stock Awards
Antidilutive securities excluded from computation of diluted earnings (loss) per common share
Antidilutive securities excluded from computation of diluted earnings per share		1,185,832

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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Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Diluted Earnings Per Share

-URI http://asc.fasb.org/extlink&oid=6510752

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-Name Accounting Standards Codification

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-Name Accounting Standards Codification

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-Name Statement of Financial Accounting Standard (FAS)

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Reference 7: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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+ Details