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Significant Customers (Details Textual) - USD ($) | 12 Months Ended
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Apr. 30, 2015 | Apr. 30, 2014
Revenue, Major Customer [Line Items] |  |
Concentration Risk, Percentage | 10.00% | 10.00%
Accounts Receivable [Member] |  |
Revenue, Major Customer [Line Items] |  |
Concentration Risk, Percentage | 10.00% | 10.00%
Customer One [Member] |  |
Revenue, Major Customer [Line Items] |  |
Revenues | $ 900,000 | $ 1,600,000
Accounts Receivable, Gross | $ 153,446 | $ 398,053
Customer One [Member] | Accounts Receivable [Member] |  |
Revenue, Major Customer [Line Items] |  |
Concentration Risk, Percentage | 14.50% | 30.40%
Customer Two [Member] |  |
Revenue, Major Customer [Line Items] |  |
Revenues | $ 900,000 | $ 1,500,000
Accounts Receivable, Gross | $ 119,540 | $ 171,962
Customer Two [Member] | Accounts Receivable [Member] |  |
Revenue, Major Customer [Line Items] |  |
Concentration Risk, Percentage | 11.30% | 13.20%
Customer Three [Member] |  |
Revenue, Major Customer [Line Items] |  |
Revenues | $ 800,000 | $ 1,500,000

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- Definition For unclassified balance sheet, amounts due from customers or clients for goods or services that have been delivered or sold in the normal course of business. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.9) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Article 5 + Details
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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13531-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13537-108611 + Details
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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