XML 49 R34.htm IDEA: XBRL DOCUMENT

Stockholders' Equity (Allocation of Stock Option Compensation Expense) (Details) (Stock Options [Member], USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock option compensation expense	$ 621,073	$ 405,596
Cost of sales [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock option compensation expense	54,707	43,917
Selling, general and administrative expenses [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock option compensation expense	508,606	355,546
Research and development [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock option compensation expense	$ 57,760	$ 6,133

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