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Stock Options, Restricted Stock and Warrants (Schedule of Assumptions Used to Estimate Share-Based Compensation Expense Using Black-Scholes Model) (Details)
3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 1 Months Ended 3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Maximum [Member]
Sep. 30, 2014
Maximum [Member]
Sep. 30, 2013
Maximum [Member]
Mar. 31, 2000
Minimum [Member]
Sep. 30, 2014
Minimum [Member]
Sep. 30, 2014
Minimum [Member]
Sep. 30, 2013
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Risk free interest rate   1.37% 2.01%   1.91% 1.91% 1.40%   1.78% 1.78% 0.90%
Expected dividend yield 0.00% 0.00% 0.00% 0.00%              
Expected volatility   107.40%     103.30% 103.30% 107.40% 98.40% 98.40% 98.40% 102.10%
Expected term (in years)   5 years [1]     6 years [1] 6 years [1] 6 years [1]   5 years 6 months [1] 5 years 6 months [1] 5 years [1]
Forfeiture rate 7.00% 7.00% 7.00% 7.00%              
[1] Expected term is calculated using SAB 107, Simplified Formula. Management has concluded that the use of the simplified method for calculating the expected term of its common stock option grants is appropriate given the Company’s lack of history of option exercises.