Summary of Significant Accounting Policies (Details 2) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Earnings Per Share Basic And Diluted [Line Items]
Weighted average number of common shares outstanding	28,792,158	23,674,133	27,207,725	22,254,439
Less: Unvested restricted stock	(219,136)	(220,050)	(219,136)	(220,050)
Weighted average number of common shares outstanding used in basic earnings per share	28,573,022	23,454,083	26,988,589	22,034,389
Weighted average number of common shares outstanding used in basic earnings per share	28,573,022	23,454,083	26,988,589	22,034,389
Effect of dilutive securities: restricted stock	83,662	109,248	80,763	92,940
Weighted average number of common shares outstanding used in diluted earnings per share	28,656,684	23,563,331	27,069,352	22,127,329