Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Tables)

12 Months Ended

Jan. 31, 2012

Summary of Significant Accounting Policies [Abstract]

Estimated useful lives used for computing depreciation

The estimated useful lives used for computing depreciation are as follows:



Building and improvements	15 - 39 years
Manufacturing equipment by segment
Applied Technology	3 - 5 years
Engineered Films	5 - 12 years
Aerostar	3 - 5 years
Electronic Systems	3 - 5 years
Furniture, fixtures, office equipment and other	3 - 7 years

- Definition

Tabular disclosure of the useful life and salvage value of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

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