Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Jan. 31, 2015	Jan. 31, 2014
Statement of Financial Position [Abstract]
Allowance for doubtful accounts receivables	$ 200	$ 200
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	3,000,000us-gaap_PreferredStockSharesAuthorized	3,000,000us-gaap_PreferredStockSharesAuthorized
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	25,000,000us-gaap_CommonStockSharesAuthorized	25,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued	14,852,640us-gaap_CommonStockSharesIssued	14,718,414us-gaap_CommonStockSharesIssued
Common stock, shares outstanding	14,852,640us-gaap_CommonStockSharesOutstanding	14,718,414us-gaap_CommonStockSharesOutstanding

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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Face amount or stated value per share of common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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