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Note 4 - Loss Per Share (Detail)	3 Months Ended
Note 4 - Loss Per Share (Detail)	Apr. 30, 2013	Apr. 30, 2012
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	1,068,826	847,151
Broadwood [Member]
Class of Warrant or Right, Outstanding	1,704,546
Elkhorn [Member]
Class of Warrant or Right, Outstanding	6,000,000

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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