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Related Party Transactions - Narrative (Details) - USD ($) | 12 Months Ended
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Apr. 30, 2016 | Apr. 30, 2015
Private Placement [Member] |  |
Related Party Transaction [Line Items] |  |
Stock issued during period for services (in shares) |  | 451,754
Common stock, purchase price (in usd per share) |  | $ 4.80
Warrants issued during period for common stock (in shares) |  | 248,460
Warrants exercise price per share (in dollars per share) |  | $ 5.76
Board of Directors Chairman [Member] |  |
Related Party Transaction [Line Items] |  |
Related related party transaction, amounts of transaction | $ 72,000 | $ 62,500
Substantial Stockholders [Member] |  |
Related Party Transaction [Line Items] |  |
Bank servicing fees | $ 8,800 | $ 3,700

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Balance Type: | na
Period Type: | duration

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- Definition The warrants exercise price per share. + References No definition available. + Details
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- Definition The number warrants issued during the period for purchase of common stock. + References No definition available. + Details
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Period Type: | duration

X
- Definition Amount of transactions with related party during the financial reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864 + Details
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- Definition Amount of revenue from servicing real estate mortgages, credit cards, and other financial assets held by others. Includes premiums received in lieu of regular servicing fees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13 (d)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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- Definition Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders. + References No definition available. + Details
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- Details
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- Details
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- Details
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