Loss Per Share of Common Stock (Antidilutive) (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Antidilutive securities excluded from computation of diluted weighted average shares outstanding
Shares excluded from the computation of diluted weighted average shares outstanding	11,561,977	12,109,535	11,640,758	11,736,238
Warrants
Antidilutive securities excluded from computation of diluted weighted average shares outstanding
Shares excluded from the computation of diluted weighted average shares outstanding	54,776	23,747	54,776	23,747
Options awards
Antidilutive securities excluded from computation of diluted weighted average shares outstanding
Shares excluded from the computation of diluted weighted average shares outstanding	3,448,930	4,027,517	3,527,711	3,654,220
8.00% Convertible Senior Notes Due 2019
Antidilutive securities excluded from computation of diluted weighted average shares outstanding
Shares excluded from the computation of diluted weighted average shares outstanding	8,058,271	8,058,271	8,058,271	8,058,271