Schedule of Components of Income Tax Expense (Benefit) (Details) (USD $)	12 Months Ended
	Jul. 31, 2014
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 1	$ 26,044,816
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 2	21,873,844
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 3	25,145,508
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 4	35.22%
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 5	35.10%
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 6	35.18%
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 7	9,172,984
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 8	7,677,719
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 9	8,846,190
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 10	(286,071)
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 11	(211,744)
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 12	(660,185)
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 13	(585,482)
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 14	(193,821)
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 15	(864,911)
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 16	79,672
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 17	522,982
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 18	723,571
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 19	199,795
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 20	(58,729)
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 21	59,559
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 22	(87,134)
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 23	(49,289)
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 24	(2,207)
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 25	(8,419,286)
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 26	(7,684,149)
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 27	(8,021,670)
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 28	74,478
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 29	2,969
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 30	80,347
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 31	(4,769)
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 32	7,784
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 33	(18,559)
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 34	69,709
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 35	10,753
Income Taxes Schedule Of Components Of Income Tax Expense (benefit) 36	$ 61,788