| Summary of Significant Accounting Policies (Tables) | 3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||
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| Mar. 31, 2014 | |||||||||||||||||||||||||||||||||||||||||||||||||
| Accounting Policies [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Weighted Average Number of Shares [Table Text Block] | 
A reconciliation of the number of shares of common stock used in the calculation of basic and diluted (loss) income per share for the three-month periods ended March 31, 2014 and 2013 is as follows:
 
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| Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] | The following outstanding stock-based awards were excluded from the computation of the effect of dilutive securities on loss per share for the following periods because they would have been anti-dilutive: 
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