Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Condensed Consolidated Balance Sheets
Common stock, shares authorized	200,000,000	200,000,000
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares issued	24,442,014	19,820,258
Common stock, shares outstanding	24,442,014	19,820,258
Treasury stock, shares at cost	3,813	3,813