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Cost Reduction Actions (Details of Future Cash Payments) (Details) (USD $)	Jan. 31, 2013
Cost Reduction Actions [Abstract]
Future lease payments to be made in excess of anticipated sublease payments	$ 3,548,000
Less net cash to be received in next twelve months	(427,000)
Interest expense to be accreted in future periods	1,317,000
Total remaining net cash payments	$ 4,438,000

Carrying amount as of the balance sheet date of known and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid after one year or beyond the next operating cycle, if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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