v2.4.0.6

Note 3 - Stock Compensation (Detail) - Stock Awards Outstanding (USD $)	3 Months Ended
	Apr. 30, 2013
Number Outstanding (in Shares)	768,826
Weighted-Avg. Remaining Contractual Life	7 years 6 months
Weighted-Avg. Exercise/Grant Price, Outstanding	$ 1.49
Number Exercisable (in Shares)	212,100
Weighted-Avg. Exercise/Grant Price, Exercisable	$ 4.00
Range $0.40 to $1.20 [Member]
Range of Exercise/Grant Prices	$ 0.40
Range of Exercise/Grant Prices	$ 1.20
Number Outstanding (in Shares)	683,500
Weighted-Avg. Remaining Contractual Life	8 years 36 days
Weighted-Avg. Exercise/Grant Price, Outstanding	$ 0.62
Number Exercisable (in Shares)	131,100
Weighted-Avg. Exercise/Grant Price, Exercisable	$ 1.10
Range $2.89 to $4.90 [Member]
Range of Exercise/Grant Prices	$ 2.89
Range of Exercise/Grant Prices	$ 4.90
Number Outstanding (in Shares)	19,326
Weighted-Avg. Remaining Contractual Life	3 years 292 days
Weighted-Avg. Exercise/Grant Price, Outstanding	$ 4.45
Number Exercisable (in Shares)	15,000
Weighted-Avg. Exercise/Grant Price, Exercisable	$ 4.90
Range $8.08 to $10.43 [Member]
Range of Exercise/Grant Prices	$ 8.08
Range of Exercise/Grant Prices	$ 10.43
Number Outstanding (in Shares)	66,000
Weighted-Avg. Remaining Contractual Life	2 years 109 days
Weighted-Avg. Exercise/Grant Price, Outstanding	$ 9.56
Number Exercisable (in Shares)	66,000
Weighted-Avg. Exercise/Grant Price, Exercisable	$ 9.56

X

- Definition

Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

+ 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)(1)(iii)

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

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X

- 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 Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (g)

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

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X

- Definition

The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

+ 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)(iii)

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

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X

- Definition

The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

+ 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)(1)(i)-(ii)

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

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X

- Definition

The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

+ 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)(1)(i)-(ii)

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

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Period Type:	instant

X

- Definition

Weighted average remaining contractual term of outstanding stock options, 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 (e)(1)

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

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X

- 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

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (g)

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

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