Note 7 - Stock Options Activity (Details) - $ / shares	12 Months Ended
Jan. 31, 2016	Jan. 31, 2015
Balance, stock options (in shares)	600,000	638,500
Balance, stock options, weighted-average exercise price (in dollars per share)	$ 0.96	$ 1.22
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	350,000	0
Options granted, weighted-average exercise price (in dollars per share)	$ 0.15	$ 0
Options canceled or expired (in shares)	0	(38,500)
Options canceled or expired, weighted-average exercise price (in dollars per share)	$ 0	$ 5.32
Options exercise (in shares)	0	0
Options exercise, weighted-average exercise price (in dollars per share)	$ 0	$ 0
Balance, stock options (in shares)	950,000	600,000
Balance, stock options, weighted-average exercise price (in dollars per share)	$ 0.66	$ 0.96
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number	560,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price	$ 0.94

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.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
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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.

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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Weighted average price of options that were either forfeited or expired.

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Number of options outstanding, including both vested and non-vested options.

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

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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

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