Stock Based Compensation - Summary of Status of Non-Vested Restricted Shares (Details) - Restricted Stock [Member] - $ / shares	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Number of restricted stock, Unvested Beginning of period	544,810	280,000
Number of restricted stock, Granted		431,941
Number of restricted stock, Forfeited		(20,000)
Number of restricted stock, Vested	(132,383)	(59,997)
Number of restricted stock, Unvested End of period	412,427	631,944
Weighted Average Grant Date Fair Value, Unvested Beginning of period	$ 2.84	$ 3.31
Weighted Average Grant Date Fair Value, Granted		2.61
Weighted Average Grant Date Fair Value, Forfeited		2.83
Weighted Average Grant Date Fair Value, Vested	$ 2.84	2.83
Weighted Average Grant Date Fair Value, Unvested End of period	$ 2.85	$ 2.89