Convertible promissory notes (Narrative) (Details) (USD $)	3 Months Ended
	Apr. 30, 2015 M D
Convertible Promissory Notes 1	10.00%
Convertible Promissory Notes 2	$ 730,174
Convertible Promissory Notes 3	60.00%
Convertible Promissory Notes 4	10,000,000
Convertible Promissory Notes 5	30
Convertible Promissory Notes 6	12
Convertible Promissory Notes 7	3,730,174
Convertible Promissory Notes 8	1,592,769
Convertible Promissory Notes 9	5,322,943
Convertible Promissory Notes 10	555,000
Convertible Promissory Notes 11	500,000
Convertible Promissory Notes 12	55,000
Convertible Promissory Notes 13	150,000
Convertible Promissory Notes 14	180
Convertible Promissory Notes 15	70.00%
Convertible Promissory Notes 16	20
Convertible Promissory Notes 17	90
Convertible Promissory Notes 18	0.00%
Convertible Promissory Notes 19	90
Convertible Promissory Notes 20	12.00%
Convertible Promissory Notes 21	150,000
Convertible Promissory Notes 22	90
Convertible Promissory Notes 23	150,000
Convertible Promissory Notes 24	186,480
Convertible Promissory Notes 25	17,937,915
Convertible Promissory Notes 26	75,000
Convertible Promissory Notes 27	75,000
Convertible Promissory Notes 28	90
Convertible Promissory Notes 29	93,240
Convertible Promissory Notes 30	9,983,507
Convertible Promissory Notes 31	75,000
Convertible Promissory Notes 32	75,000
Convertible Promissory Notes 33	41,961
Convertible Promissory Notes 34	5,900,000
Convertible Promissory Notes 35	50,000
Convertible Promissory Notes 36	105,733
Convertible Promissory Notes 37	30,800,000
Convertible Promissory Notes 38	94,284
Convertible Promissory Notes 39	250,000
Convertible Promissory Notes 40	225,000
Convertible Promissory Notes 41	25,000
Convertible Promissory Notes 42	100.00%
Convertible Promissory Notes 43	70.00%
Convertible Promissory Notes 44	5
Convertible Promissory Notes 45	250,000
Convertible Promissory Notes 46	102,500
Convertible Promissory Notes 47	11,792,944
Convertible Promissory Notes 48	125,001
Convertible Promissory Notes 49	29,248,823
Convertible Promissory Notes 50	22,500
Convertible Promissory Notes 51	150,000
Convertible Promissory Notes 52	12.00%
Convertible Promissory Notes 53	180
Convertible Promissory Notes 54	45.00%
Convertible Promissory Notes 55	10
Convertible Promissory Notes 56	160,834
Convertible Promissory Notes 57	56,676,739
Convertible Promissory Notes 58	0
Convertible Promissory Notes 59	105,000
Convertible Promissory Notes 60	10.00%
Convertible Promissory Notes 61	5,000
Convertible Promissory Notes 62	180
Convertible Promissory Notes 63	40.00%
Convertible Promissory Notes 64	52,320
Convertible Promissory Notes 65	26,000,000
Convertible Promissory Notes 66	58,285
Convertible Promissory Notes 67	210,000
Convertible Promissory Notes 68	10,000
Convertible Promissory Notes 69	105,000
Convertible Promissory Notes 70	100,000
Convertible Promissory Notes 71	5,000
Convertible Promissory Notes 72	50,000
Convertible Promissory Notes 73	2,500
Convertible Promissory Notes 74	10.00%
Convertible Promissory Notes 75	37.50%
Convertible Promissory Notes 76	5
Convertible Promissory Notes 77	162,649
Convertible Promissory Notes 78	331,323
Convertible Promissory Notes 79	114,954
Convertible Promissory Notes 80	8,000
Convertible Promissory Notes 81	2,250
Convertible Promissory Notes 82	424,666
Convertible Promissory Notes 83	113,218
Convertible Promissory Notes 84	45,663
Convertible Promissory Notes 85	15,500
Convertible Promissory Notes 86	30,163
Convertible Promissory Notes 87	0
Convertible Promissory Notes 88	$ 11,416