Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(1)(i)

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph g(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

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-Topic 718

-SubTopic 10

-Section 50

-Paragraph 1

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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section F

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph 64

-Subparagraph 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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

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-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 14.F)

-URI http://asc.fasb.org/extlink&oid=6793087&loc=d3e301413-122809

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- Definition

Aggregate unrecognized cost of option awards made to employees under a stock option plan or plans, that have yet to vest.

+ References

No definition available.

+ Details

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- Definition

Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

-Topic 210

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-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.28)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 28

-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.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (a)

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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

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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

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-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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Stock Based Compensation (Details) (USD $)	3 Months Ended
Stock Based Compensation (Details) (USD $)	Apr. 30, 2013	Apr. 30, 2012	Jan. 31, 2013
Summary of restricted stock and stock unit awards
Preferred Stock, Shares Outstanding	0	0	0
Unamortized Compensation	$ 939,000
Totals for the period	142,000	260,000
Restricted Stock Units (RSUs) [Member]
Summary of restricted stock and stock unit awards
Totals for the period	141,000	260,000
2011 Stock Incentive Plan [Member] \| Restricted Stock, issued 6/19/2012, vesting over 1 year [Member]
Summary of restricted stock and stock unit awards
Units Granted	31,250
Allocated Share-based Compensation Expense	13,000
Unamortized Compensation	4,000
2011 Stock Incentive Plan [Member] \| Restricted Stock, issued 6/19/2012, vesting over 5 years [Member]
Summary of restricted stock and stock unit awards
Units Granted	520,000
Allocated Share-based Compensation Expense	42,000
Unamortized Compensation	679,000
2007 Stock Incentive Plan [Member]
Summary of restricted stock and stock unit awards
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	0
2007 Stock Incentive Plan [Member] \| Restricted Stock, issued 6/19/2012, vesting over 1 year [Member]
Summary of restricted stock and stock unit awards
Units Granted	78,125
Allocated Share-based Compensation Expense	30,000
Unamortized Compensation	11,000
2007 Stock Incentive Plan [Member] \| Restricted Stock, issued 3/21/2012, vesting immediately [Member]
Summary of restricted stock and stock unit awards
Units Granted	40,000
Allocated Share-based Compensation Expense		80,000
2007 Stock Incentive Plan [Member] \| Restricted Stock, issued 6/21/2011, vesting over 1 year [Member]
Summary of restricted stock and stock unit awards
Units Granted	68,960
Allocated Share-based Compensation Expense	0	50,000
2007 Stock Incentive Plan [Member] \| Restricted Stock, issued 6/8/2010, vesting over 1 year [Member]
Summary of restricted stock and stock unit awards
Units Granted	56,455
Allocated Share-based Compensation Expense		0
2007 Stock Incentive Plan [Member] \| Restricted Stock, issued 6/16/2009, vesting over 5 years [Member]
Summary of restricted stock and stock unit awards
Units Granted	382,500
Allocated Share-based Compensation Expense	56,000	56,000
Unamortized Compensation	245,000
2007 Stock Incentive Plan [Member] \| Restricted Stock Units, issued 6/19/2007, vesting over 5 years [Member]
Summary of restricted stock and stock unit awards
Units Granted	262,500
Allocated Share-based Compensation Expense	$ 0	$ 74,000