Condensed Consolidated Statements of Stockholders' Equity (Deficiency) (Parenthetical) (USD $)	12 Months Ended				6 Months Ended	12 Months Ended
	Jan. 31, 2007	Jan. 31, 2006	Jan. 31, 2005	Jan. 31, 2003	Jan. 31, 2000 Founders	Jan. 31, 2006 Series A Convertible Preferred Stock Warrants Selling agents and finders	Jan. 31, 2006 Third and final tranche of a private placement of units of common stock and warrants to purchase common stock 2005 Selling agents and finders
Issuance of common stock for cash (in dollars per share)				$ 0.003	$ 0.0012
Issuance of common stock and warrants for cash (in dollars per share)	$ 6.00		$ 11.70
Issuance of warrants to selling agents (in shares)	15,779		20,610			17,572	20,205
Issuance of preferred stock and warrants for cash (in dollars per share)		$ 10.00
Interest rate, convertible debenture (as a percent)	6.00%