Other than stock options grant in exchange of stock option eligible for exchange.

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- Definition

Percentage of stock options eligible for exchange of stock option.

+ References

No definition available.

+ Details

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- Definition

Share based compensation arrangement by share based payment award equity instruments other than options grant date fair value.

+ References

No definition available.

+ Details

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- Definition

Share based compensation arrangement by share based payment award expiration period.

+ References

No definition available.

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- Definition

Share based compensation arrangement by share based payment award options grant in period fair value.

+ References

No definition available.

+ Details

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- Definition

Share based compensation arrangement by share based payment award options vesting in period fair value.

+ References

No definition available.

+ Details

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- Definition

Share based compensation arrangement vesting period for exchanged stock option.

+ References

No definition available.

+ Details

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- Definition

Stock options eligible for exchange exercise price.

+ References

No definition available.

+ Details

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- Definition

Stock options eligible for exchange expiration date.

+ References

No definition available.

+ Details

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- Definition

Stock options eligible for exchange number.

+ References

No definition available.

+ Details

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- Definition

Additional share-based compensation cost recognized as a result of an occurrence of an event that accelerates its recognition.

+ References

No definition available.

+ Details

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

+ Details

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(i)-(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(2)(b)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(2)(a)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

+ References

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ References

+ Details

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

+ Details

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

+ Details

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- Definition

The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

+ References

+ Details

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- Definition

The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(1)(b)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

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-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(i)-(ii)

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(1)(a)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

+ Details

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- Definition

An excess of the fair value of the modified award over the fair value of the award immediately before the modification.

+ References

+ Details

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- Definition

The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph 64

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (g)

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- Definition

The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ References

+ Details

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- Definition

Number of share options (or share units) exercised during the current period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.28,29)

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-Name Accounting Standards Codification

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-SubTopic 10

-Section 50

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-Subparagraph (c)(1)(iv)(2)

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-Publisher SEC

-Name Regulation S-X (SX)

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-Section 04

-Article 3

Reference 4: http://www.xbrl.org/2003/role/presentationRef

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-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

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-Name Accounting Standards Codification

-Topic 505

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-Name Accounting Standards Codification

-Topic 505

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-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

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Stock-Based Compensation (Details Textual) (USD $)	12 Months Ended
Stock-Based Compensation (Details Textual) (USD $)	Jan. 31, 2013	Jan. 31, 2012	Jan. 31, 2011	Jan. 31, 2010	Jul. 14, 2009	Jun. 03, 2009
Stock-Based Compensation (Textual) [Abstract]
Vesting period	5 years
Shares available to grant as stock-based compensation awards	199,179
Number of option shares, unvested	309,994	266,027
Stock Based Compensation (Additional Textual) [Abstract]
Expiration period	10 years
Total intrinsic value of stock options		$ 7,000	$ 155,000
Total fair Value of stock option granted	129,000	19,000	640,000
Total fair value of stock option shares vested	210,000	241,000	120,000
Number of option shares, unvested	782,443	655,083	777,193	692,731
No of option exercised		12,530	71,855
Weighted average exercise price of options shares	$ 4.21	$ 4.68	$ 4.54	$ 3.70
Number of options exercisable	472,449
Weighted average exercise price of options exercisable	$ 4.41
Exercise price of stock options eligible for exchange						$ 5.00
Expiry of stock option exchange	Jul. 13, 2009
Total eligible stock options tendered	406,717
Tendered stock options percentage of total stock options eligible for exchange						97.20%
Restricted stock units granted in exchange of stock options surrendered					135,575
Incremental cost due to Option Exchange	126,000
Range One [Member]
Stock-Based Compensation (Textual) [Abstract]
Exercisable and unexercisable, price range per share, lower limit	$ 1.69
Exercisable and unexercisable, price range per share, upper limit	$ 4.99
Range Two [Member]
Stock-Based Compensation (Textual) [Abstract]
Exercisable and unexercisable, price range per share, lower limit	$ 5.00
Exercisable and unexercisable, price range per share, upper limit	$ 8.70
Restricted Stock Units (RSUs) [Member]
Stock-Based Compensation (Textual) [Abstract]
Vesting period of the restricted stock units	2 years
Incremental cost recognized as compensation expense	$ 0	$ 32,000	$ 60,000
Grant date fair value of restricted stock units	$ 4.20
Restricted Stock [Member]
Stock-Based Compensation (Textual) [Abstract]
Vesting period	2 years
Stock compensation expense related to performance-based awards			190,000
Performance-based restricted stock awards vested	78,750	191,324	164,877
Number of option shares, unvested		78,750	315,282	309,325
Weighted average exercise price, unvested		$ 6.45	$ 5.83	$ 4.40