Summary of Significant Accounting Policies (Tables)

12 Months Ended

Jul. 31, 2016

Summary of Significant Accounting Policies [Abstract]

Revenue Recognition Policy

Revenue is recognized as follows:

Contract Type	Work Type	Revenue Recognition Policy
Time and materials	Consulting	As incurred at contract rates.
Fixed price	Consulting	Percentage of completion, approximating the ratio of either total costs or Level of Effort (LOE) hours incurred to date to total estimated costs or LOE hours.
Cost-plus	Consulting	Costs as incurred plus fees.  Fees are recognized as revenue using percentage of completion determined by the percentage of LOE hours incurred to total LOE hours in the respective contracts.

Summary of Methods of Depreciation or Amortization and Useful Lives for All Other Long-Lived Assets

Methods of depreciation or amortization and useful lives for all other long-lived assets are summarized in the following table.

	Depreciation / Amortization Method	Useful Lives
Buildings	Straight-line	32-40 Years
Building Improvements	Straight-line	7-15 Years
Field Equipment	Straight-line	3-7 Years
Computer equipment	Straight-line and Accelerated	3-7 Years
Computer software	Straight-line	10 Years
Office furniture and equipment	Straight-line	3-7 Years
Vehicles	Straight-line	3-5 Years
Leasehold improvements	Straight-line	(1)

(1) Leasehold improvements are amortized for book purposes over the terms of the leases or the estimated useful lives of the assets, whichever is shorter.