Basis of Presentation and Summary of Significant Accounting Policies (Details) (USD $)	0 Months Ended	3 Months Ended			9 Months Ended		12 Months Ended
	Aug. 01, 2013	Sep. 30, 2014 SaleLeasebackTransaction	Sep. 30, 2013	Jun. 30, 2013	Sep. 30, 2014 SaleLeasebackTransaction	Sep. 30, 2013	Dec. 31, 2013
Summary of Significant Accounting Policies [Abstract]
Sales price of discontinued operation	$ 30,000,000
Contingent earn-out	2,250,000
Loss from sale of discontinued operation	12,000,000						12,000,000
Impairment charge included in the loss from sale of discontinued operation	2,500,000
Numerator [Abstract]
Net income (loss) from continuing operations		1,205,000	(8,395,000)		3,029,000	(28,253,000)
Net income (loss) from discontinuing operations		(106,000)	(10,220,000)		(208,000)	(11,671,000)
Net income (loss)		1,099,000	(18,615,000)		2,821,000	(39,924,000)
Denominator [Abstract]
Weighted average shares outstanding - Basic (in shares)		47,749,000	47,588,000		47,694,000	47,535,000
Weighted average shares outstanding - Diluted (in shares)		49,042,000	47,588,000		48,531,000	47,535,000
Basic income (loss) per common share:
Basic income (loss) per share - continuing operations (in dollars per share)		$ 0.02	$ (0.18)		$ 0.06	$ (0.59)
Basic loss per share - discontinued operations (in dollars per share)		$ 0	$ (0.21)		$ 0	$ (0.25)
Basic income (loss) per share (in dollars per share)		$ 0.02	$ (0.39)		$ 0.06	$ (0.84)
Diluted income (loss) per common share
Diluted income (loss) per share - continuing operations (in dollars per share)		$ 0.02	$ (0.18)		$ 0.06	$ (0.59)
Diluted loss per share - discontinued operations (in dollars per share)		$ 0	$ (0.21)		$ 0	$ (0.25)
Diluted income (loss) per share (in dollars per share)		$ 0.02	$ (0.39)		$ 0.06	$ (0.84)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options exercisable which were not included in computation of diluted earnings per share (in shares)					147,420	167,334
Stock-Based Compensation [Abstract]
Share-based compensation expense recognized		622,000	597,000		1,831,000	1,950,000
Unrecognized pre-tax compensation expense related to share-based awards not yet vested		2,800,000			2,800,000
Weighted-average period of recognition					1 year 4 months 24 days
Sales Leaseback Transactions [Abstract]
Number of sale-leaseback transactions		2			2
Proceeds from sale leaseback transactions				14,900,000	0	14,944,000
Recognized loss on sale leaseback transactions		$ 900,000			$ 900,000