Earnings Per Share (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Summary of Basic and diluted earnings per share
Net income	$ 2,389,728	$ 3,087,079
Weighted average number of common shares- Basic and diluted	14,781,241	14,774,109
Earnings per share - Basic and diluted	$ 0.16	$ 0.21