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Other Assets (Detail) - Schedule of Other Assets (USD $) In Thousands, unless otherwise specified	Apr. 30, 2013	Jan. 31, 2013
Deferred financing costs, net	$ 672	$ 781
Prepaid commissions	94	164
Deposits	2,064	2,064
Real estate taxes refundable	2,614	2,614
Other	473	1,138
Total	$ 5,917	$ 6,761

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Value of real estate taxes refundable non current as of the reporting date.

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Net amount of long-term deferred finance costs capitalized at the end of the reporting period.

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Carrying value of amounts transferred to third parties for security purposes that are expected to be returned or applied towards payment after one year or beyond the operating cycle, if longer.

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Sum of the carrying amounts as of the balance sheet date of amounts paid in advance for expenses which will be charged against earnings in periods after one year or beyond the operating cycle, if longer.

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