Noncontrolling Interest	9 Months Ended
Noncontrolling Interest	Oct. 31, 2011
Noncontrolling Interest [Abstract]
Noncontrolling Interest Disclosure [Text Block]	Noncontrolling Interest The company entered into a business venture agreement to pursue potential product and support service contracts for agencies and instrumentalities for the United States Government. The business venture, Aerostar Integrated Systems (AIS), is 75 percent owned by the company and will be included in the Aerostar business segment. Given the company's majority ownership interest, the accounts of the business venture have been consolidated with the accounts of the company, and a noncontrolling interest has been recorded for the noncontrolling investor's interests in the net assets and operations of the business venture. Total capital contribution and net income for the three and nine month period ended October 31, 2011 were $100 and $32, respectively.

The entire disclosure for noncontrolling interest in consolidated subsidiaries, which could include the name of the subsidiary, the ownership percentage held by the parent, the ownership percentage held by the noncontrolling owners, the amount of the noncontrolling interest, the location of this amount on the balance sheet (when not reported separately), an explanation of the increase or decrease in the amount of the noncontrolling interest, the noncontrolling interest share of the net Income or Loss of the subsidiary, the location of this amount on the income statement (when not reported separately), the nature of the noncontrolling interest such as background information and terms, the amount of the noncontrolling interest represented by preferred stock, a description of the preferred stock, and the dividend requirements of the preferred stock.

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