Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Preferred stock, par value	$ 0.00001
Preferred stock, shares authorized	20,000,000
Common stock, par value	$ 0.00001
Common stock, shares authorized	250,000,000	12,936,000
Common stock, shares issued	19,199,000	1,267,000
Common stock, shares outstanding	19,199,000	1,267,000
Convertible preferred stock - Series A [Member]
Preferred stock, par value	$ 0.00001
Preferred stock, shares authorized		1,489,000
Preferred stock, shares issued		1,484,000
Preferred stock, shares outstanding		1,484,000
Convertible preferred stock - Series B [Member]
Preferred stock, par value	$ 0.00001
Preferred stock, shares authorized		2,252,000
Preferred stock, shares issued		2,242,000
Preferred stock, shares outstanding		2,242,000
Convertible preferred stock - Series C [Member]
Preferred stock, par value	$ 0.00001
Preferred stock, shares authorized		5,082,000
Preferred stock, shares issued		4,778,000
Preferred stock, shares outstanding		4,778,000