CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Stockholders' equity:
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, authorized	20,000,000	20,000,000
Preferred stock, issued	0	0
Preferred stock, outstanding	0	0
Common stock, par value	$ 0.0013	$ 0.0013
Common stock, authorized	160,000,000	160,000,000
Common stock, issued	69,775,404	61,025,404
Common stock, shares outstanding (in shares)	69,575,404	60,825,404
Treasury stock, shares	200,000	200,000