Stock Based Compensation (Details) - Information about non-vested share awards (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Stock Based Compensation (Details) - Information about non-vested share awards [Line Items]
Options Granted, Weighted-Average Grant Date Fair Value			$ 2.12
Restricted Stock [Member]
Stock Based Compensation (Details) - Information about non-vested share awards [Line Items]
Outstanding at December 31, 2011	352,613	367,435	179,336
Outstanding at December 31, 2011	$ 3.85	$ 3.79	$ 3.07
Options Granted, Number of shares	400,691	28,300	188,099
Options Granted, Weighted-Average Grant Date Fair Value	$ 3.71	$ 4.24	$ 4.48
Options Outstanding	544,248	352,613	367,435
Options Outstanding, Weighted-Average Grand date Fair Value	$ 3.74	$ 3.85	$ 3.79
Options Forfeited, Number of shares	(140,448)	(29,485)
Options Forfeited, Weighted-Average Grant Date Fair Value	$ 3.89	$ 3.56
Options Vested, Number of shares	(68,608)	(13,637)
Options Vested, Weighted-Average Grant Date Fair Value	$ 3.80	$ 3.82