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 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 14.F)

-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

Reference 3: 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)

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

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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section F

+ Details

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Balance Type:	debit
Period Type:	duration

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- Definition

Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

+ 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

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

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

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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

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)(iii)(1)

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

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Stock-Based Compensation and Stockholders' Rights (Restricted Stock Units) (Details) (USD $)	3 Months Ended		12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Jan. 31, 2014
Restricted Stock or Stock Units [Member]
Summary of restricted stock and stock unit awards
Expense for 3 months ended	$ 133,000	$ 142,000
Unrecognized compensation at cost	551,000
2011 Plan [Member] \| 10000 units of restricted stock issued on 12/3/2013 vesting over 1 Year [Member]
Summary of restricted stock and stock unit awards
Granted			10,000
Maximum term of stock options			1 year
Expense for 3 months ended	6,000	0
Unrecognized compensation at cost	7,000
Restricted Stock Units
Granted			10,000
2011 Plan [Member] \| 10000 units of restricted stock issued on 12/3/2013 vesting over 5 years [Member]
Summary of restricted stock and stock unit awards
Granted			18,000
Maximum term of stock options			5 years
Expense for 3 months ended	3,000	0
Unrecognized compensation at cost	33,000
Restricted Stock Units
Granted			18,000
2011 Plan [Member] \| 71,430 units of restricted stock issued on 6/25/2013 vesting over 1yr [Member]
Summary of restricted stock and stock unit awards
Granted			71,430
Maximum term of stock options			1 year
Expense for 3 months ended	37,000	0
Unrecognized compensation at cost	13,000
Restricted Stock Units
Granted			71,430
2011 Plan [Member] \| 31,250 units of restricted stock issued on 6/19/2012 vesting over 1 year
Summary of restricted stock and stock unit awards
Granted			31,250
Maximum term of stock options			1 year
Expense for 3 months ended	0	13,000
Unrecognized compensation at cost	0
Restricted Stock Units
Granted			31,250
2011 Plan [Member] \| 520,000 Grants of Restricted Stock, issued 6/19/2012, vesting over 5 years [Member]
Summary of restricted stock and stock unit awards
Granted			520,000
Maximum term of stock options			5 years
Expense for 3 months ended	40,000	42,000
Unrecognized compensation at cost	483,000
Restricted Stock Units
Granted			520,000
2007 Plan [Member] \| Grants of Restricted Stock, issued 6/19/2012, vesting over 1 year [Member]
Summary of restricted stock and stock unit awards
Granted			78,125
Maximum term of stock options			1 year
Expense for 3 months ended	0	30,000
Unrecognized compensation at cost	0
Restricted Stock Units
Granted			78,125
2007 Plan [Member] \| 40,000 Grants of Restricted Stock, issued 3/21/2012, vesting immediately [Member]
Summary of restricted stock and stock unit awards
Granted			40,000
Restricted Stock Units
Granted			40,000
2007 Plan [Member] \| 68,960 Grants of Restricted Stock, issued 6/21/2011, vesting over 1 year [Member]
Summary of restricted stock and stock unit awards
Granted			68,960
Maximum term of stock options			1 year
Restricted Stock Units
Granted			68,960
2007 Plan [Member] \| 56,455 Grants of Restricted Stock, issued 6/8/2010, vesting over 1 year [Member]
Summary of restricted stock and stock unit awards
Granted			56,455
Maximum term of stock options			1 year
Restricted Stock Units
Granted			56,455
2007 Plan [Member] \| 382,500 Restricted Stock Units, issued 6/16/2009, vesting over 5 years [Member]
Summary of restricted stock and stock unit awards
Granted			382,500
Maximum term of stock options			5 years
Expense for 3 months ended	47,000	57,000
Unrecognized compensation at cost	$ 15,000
Restricted Stock Units
Granted			382,500
2007 Plan [Member] \| 262,500 Restricted Stock Units, issued 6/19/2007, vesting over 5 years [Member]
Summary of restricted stock and stock unit awards
Granted			262,500
Maximum term of stock options			5 years
Restricted Stock Units
Granted			262,500
2007 Plan [Member] \| Restricted Stock or Stock Units [Member]
Summary of restricted stock and stock unit awards
Granted			0
Restricted Stock Units
Granted			0