Related Party Transactions (Details) |
3 Months Ended | 12 Months Ended | ||||
|---|---|---|---|---|---|---|
|
Oct. 31, 2016
USD ($)
|
Jul. 31, 2016
USD ($)
|
Jul. 31, 2015
USD ($)
|
Jul. 31, 2014
USD ($)
|
Apr. 25, 2015
USD ($)
|
Apr. 25, 2015
CNY (¥)
|
|
| Construction projects - Receipt in advance | $ 88,580 | $ 0 | ||||
| Total | 2,089,218 | 1,716,734 | $ 1,056,568 | $ 3,080,147 | ||
| Luck Sky Hong Kong Aerodynamic Electricity Limited [Member] | ||||||
| Rental fees | 20,498 | 0 | ||||
| LuckSky Group [Member] | ||||||
| Rental fees | 305,178 | 280,304 | 166,443 | 33,253 | ||
| Borrowings | 0 | 0 | 1,242,198 | |||
| Sanhe Dong Yi Glass Machine Company Limited [Member] | ||||||
| Rental fees (Capital lease interest payable) | 241,105 | 246,060 | 262,996 | 52,542 | ||
| Borrowings | 0 | 0 | 160,865 | |||
| Kelitai Air Powered Machinery Co Ltd [Member] | ||||||
| Payments to Acquire Productive Assets | 0 | 0 | 1,235,667 | |||
| Borrowings | $ 507,917 | ¥ 3,150,000 | ||||
| Prepaid expenses on behalf of the company | 0 | 0 | 1,510 | |||
| Zhou Deng Rong [Member] | ||||||
| Prepaid expenses on behalf of the company | $ 1,433,857 | $ 1,190,370 | $ 627,129 | $ 354,112 | ||