Stock-Based Compensation and Stockholders' Rights (Restricted Stock Units) (Details) (USD $)	3 Months Ended
Apr. 30, 2015	Apr. 30, 2014
Restricted Stock or Stock Units [Member]
Summary of restricted stock and stock unit awards
Expense for 3 months ended	$ 122,000	$ 133,000
Unrecognized compensation at cost	1,377,000
2011 Plan [Member] \| 28626 units of restricted stock issued on 6/24/2014 vesting over 1 year [Member]
Summary of restricted stock and stock unit awards
Granted	28,626
Maximum term of stock options	1 year
Expense for 3 months ended	19,000
Unrecognized compensation at cost	6,000
Restricted Stock Units
Granted	28,626
2011 Plan [Member] \| 490,000 units of restricted stock issued on 6/24/2014 vesting over 5 Year [Member]
Summary of restricted stock and stock unit awards
Granted	490,000
Maximum term of stock options	5 years
Expense for 3 months ended	64,000
Unrecognized compensation at cost	1,044,000
Restricted Stock Units
Granted	490,000
2011 Plan [Member] \| 10,000 units of restricted stock issued on 12/03/2014 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		9,000
Restricted Stock Units
Granted		10,000
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	0	37,000
Unrecognized compensation at cost	0
Restricted Stock Units
Granted	71,430
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	39,000	40,000
Unrecognized compensation at cost	327,000
Restricted Stock Units
Granted	520,000
2011 Plan [Member] \| Restricted Stock or Stock Units [Member]
Summary of restricted stock and stock unit awards
Granted	0
Restricted Stock Units
Granted	0
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	0	47,000
Unrecognized compensation at cost	$ 0
Restricted Stock Units
Granted	382,500
2007 Plan [Member] \| Restricted Stock or Stock Units [Member]
Summary of restricted stock and stock unit awards
Granted	0
Restricted Stock Units
Granted	0

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

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- Definition

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

+ References

No definition available.

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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)

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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

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-SubTopic 10

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