Stock Options (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Stock Options
Stock options granted under 2010 Stock Incentive Plan (in shares)			295,500
Stock-based compensation	$ 328,376	$ 216,602	$ 696,625	$ 474,144
Total future stock compensation expense related to nonvested awards	$ 1,996,000		$ 1,996,000