Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Accumulated depreciation	$ 632	$ 585
Preferred stock, par value	$ 0.0001	$ 0.0001
Preferred stock, shares authorized	10,000,000	10,000,000
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	1,500,000,000	1,500,000,000
Common stock, shares issued	11,788,045	5,289,007
Common stock, shares outstanding	11,788,045	5,289,007
Series A Convertible Preferred Stock [Member]
Preferred stock, par value	$ 0.0001	$ 0.0001
Preferred Stock, Shares Authorized	15,000	15,000
Preferred stock, shares issued	7,920	9,726
Preferred stock, shares outstanding	7,920	9,726
Series A-1 Convertible Preferred Stock [Member]
Preferred stock, par value	$ 0.0001	$ 0.0001
Preferred stock, shares authorized	5,000	5,000
Preferred stock, shares issued	2,054	0
Preferred stock, shares outstanding	2,054	0