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Description of Business and Significant Accounting Policies - Liquidity and Basis of Presentation (Details Narrative) (USD $)
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3 Months Ended | 9 Months Ended | 12 Months Ended | ||||
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Jan. 31, 2014
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Jan. 31, 2013
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Jan. 31, 2014
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Jan. 31, 2013
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Apr. 30, 2013
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Apr. 30, 2012
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Apr. 30, 2011
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| Net loss | $ (846,786) | $ (781,663) | $ (2,066,608) | $ (3,005,137) | $ (4,625,000) | $ (3,259,000) | $ (4,634,000) |
| Net cash used in operating activities | (585,636) | (2,666,693) | |||||
| Liquidity disclosure | Management projects the Company currently has sufficient cash and borrowing availability after considering proceeds received from the equity transaction described more fully in Note 15, to last into the fiscal quarter ending October 31, 2014. | Management believes that the aggregate $3,500,000 available under its credit facility combined with current projected losses will not be sufficient to meet its current obligations and the Company will need to raise additional capital through borrowings or sales of equity securities. There can be no assurance that the Company will be able to obtain additional borrowings or complete a sale of additional equity securities. There can be no assurance that the Company will be able to obtain borrowings or complete a sale of additional equity securities at terms acceptable to the Company, or at all. The Company is considering calling a Special Meeting of its shareholders to approve the sale of securities above the 20% NASDAQ limitation as well as approval to issue preferred stock. | |||||
| Net proceeds to the Compay from the offering | 695,491 | ||||||
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Purchase Agreement of March 20, 2014
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| Net proceeds to the Compay from the offering | 583,000 | ||||||
| Warrants exercised | 86,100 | ||||||
| Exercise price of warrants | $ 3.50 | ||||||
| Net proceeds from excercise of warrants | $ 301,350 | ||||||