Segmented Information (Narrative) (Details) (USD $)	9 Months Ended
	Jan. 31, 2015
Segmented Information 1	$ 1,407,114
Segmented Information 2	4,836,668
Segmented Information 3	1,569,358
Segmented Information 4	4,269,697
Segmented Information 5	277,018
Segmented Information 6	965,693
Segmented Information 7	246,605
Segmented Information 8	1,320,838
Segmented Information 9	322,655
Segmented Information 10	374,520
Segmented Information 11	16,419
Segmented Information 12	39,884
Segmented Information 13	86,197
Segmented Information 14	425,372
Segmented Information 15	137,390
Segmented Information 16	348,032
Segmented Information 17	57,907
Segmented Information 18	72,552
Segmented Information 19	2,014
Segmented Information 20	3,597
Segmented Information 21	12,517
Segmented Information 22	56,811
Segmented Information 23	159,072
Segmented Information 24	85,110
Segmented Information 25	183,235
Segmented Information 26	47,197
Segmented Information 27	108,841
Segmented Information 28	30,102
Segmented Information 29	63,179
Segmented Information 30	160,294
Segmented Information 31	434,106
Segmented Information 32	3,276
Segmented Information 33	29,183
Segmented Information 34	96,522
Segmented Information 35	119,623
Segmented Information 36	13,619
Segmented Information 37	52,336
Segmented Information 38	91,078
Segmented Information 39	102,310
Segmented Information 40	3,431
Segmented Information 41	13,132
Segmented Information 42	45,702
Segmented Information 43	193,992
Segmented Information 44	61,640
Segmented Information 45	258,648
Segmented Information 46	26,412
Segmented Information 47	78,430
Segmented Information 48	28,050
Segmented Information 49	79,245
Segmented Information 50	36,950
Segmented Information 51	37,670
Segmented Information 52	151
Segmented Information 53	2,496
Segmented Information 54	12,424
Segmented Information 55	99,692
Segmented Information 56	32,616
Segmented Information 57	218,459
Segmented Information 58	10,217
Segmented Information 59	38,946
Segmented Information 60	60,490
Segmented Information 61	100,246
Segmented Information 62	5,620
Segmented Information 63	28,540
Segmented Information 64	37,648
Segmented Information 65	61,911
Segmented Information 66	5,313
Segmented Information 67	34,796
Segmented Information 68	19,731
Segmented Information 69	$ 156,741