Board of directors fees (Details) (USD $)	Nov. 30, 2013	Jul. 31, 2013	Jun. 30, 2013	Jan. 31, 2013
Board of directors fees
Warrants granted purchase common stock shares	50,000	50,000	50,000	50,000
Warrants exercise price per share		$ 0.38	$ 0.40	$ 0.12
Warrants granted vested on grant	12,500	12,500	12,500	12,500
Warrants granted vested on Sept 30, Dec.31, 2012 and March 31, of 2013	12,500	12,500	12,500	12,500
Warrants valued	$ 14,053	$ 17,187	$ 15,873	$ 10,381
Term of the warrants in years		3	3	3
Volatility rate	141.53%	143.37%	145.67%	131.97%
Annual rate of dividends	0.00%	0.00%	0.00%	0.00%
Discount rate	0.33%	0.25%	0.25%	0.27%
Proceeds from annual term served, paid quarterly	$ 10,000	$ 10,000	$ 10,000	$ 10,000