Earnings (Loss) Per Common Share (Details Textual) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Schedule of Other Securities Included in Calculation of EPS [Abstract]
Number of common shares in the basic and diluted earnings per common share (shares)	0.5	0.7	0.9
Nonvested restricted share (shares)	0.1	0.2	0.2
Non-qualified Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average shares outstanding excludes anti-dilutive shares underlying options (shares) (less than for Performance Units)	3.3	3.0	1.6
Performance Unit [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average shares outstanding excludes anti-dilutive shares underlying options (shares) (less than for Performance Units)		0.1