XML 20 R24.htm IDEA: XBRL DOCUMENT

Summary of Significant Accounting Policies (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Summary of Significant Accounting Policies
Percentage of excess cash invested in U.S. Treasury Money Market Fund			100.00%
Dividends paid to stockholders			$ 0
Stock-Based Compensation
Stock-based compensation expense	576,818	98,743	2,861,999	132,027
Research and development
Stock-Based Compensation
Stock-based compensation expense	422,719	67,017	1,787,127	91,251
General and administrative
Stock-Based Compensation
Stock-based compensation expense	$ 154,099	$ 31,726	$ 1,074,872	$ 40,776

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References+ Details

- Definition

Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.

+ References+ Details