Stockholders' Equity (Details Textual) (USD $)	6 Months Ended			1 Months Ended			3 Months Ended	6 Months Ended	1 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Mar. 03, 2014 Public Offering [Member]	Feb. 27, 2014 Public Offering [Member]	Feb. 26, 2014 Public Offering [Member]	Jun. 30, 2014 Employee Stock Option [Member]	Jun. 30, 2014 Employee Stock Option [Member]	Mar. 03, 2014 Common Stock [Member] Public Offering [Member]
Stockholders' Equity [Line Items]
Common Stock, Shares Authorized	110,000,000		110,000,000
Common Stock, Par Or Stated Value Per Share	$ 0.001		$ 0.001			$ 0.001
Common Stock, Shares, Outstanding	73,040,329		63,907,357
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized						7,876,497
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized					1,181,475
Stock Issued During Period, Shares, New Issues				9,057,972
Sale of Stock, Price Per Share				$ 1.38
Proceeds from Issuance or Sale of Equity				$ 12,500,000
Proceeds from Issuance of Common Stock	11,425,118	0		11,400,000
Payments for Repurchase of Initial Public Offering									300,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period							75,000	75,000
Proceeds from Stock Options Exercised	$ 34,000	$ 0