Stockholders' Equity (Deficiency) (Stock Options Narrative) (Details) (USD $)
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4 Months Ended | 12 Months Ended | 3 Months Ended | 4 Months Ended | 12 Months Ended | 1 Months Ended | 3 Months Ended | 12 Months Ended | 1 Months Ended | 4 Months Ended | 12 Months Ended | 1 Months Ended | ||||||||||||||||||||||||||
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Apr. 30, 2013
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Apr. 30, 2012
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Apr. 30, 2014
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Dec. 31, 2012
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Dec. 17, 2012
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Jul. 31, 2014
Employee [Member]
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Jul. 31, 2013
Employee [Member]
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Apr. 30, 2013
Employee [Member]
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Apr. 30, 2012
Employee [Member]
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Apr. 30, 2014
Employee [Member]
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Dec. 31, 2012
Employee [Member]
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Apr. 30, 2014
Employee [Member]
Minimum [Member]
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Apr. 30, 2014
Employee [Member]
Maximum [Member]
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Dec. 31, 2012
Non-employee [Member]
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Mar. 31, 2012
Non-employee [Member]
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Jul. 31, 2014
Non-employee [Member]
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Jul. 31, 2013
Non-employee [Member]
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Dec. 31, 2012
Non-employee [Member]
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Dec. 31, 2012
Consultant [Member]
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Oct. 31, 2012
Consultant [Member]
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Apr. 30, 2013
Faculty [Member]
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Apr. 30, 2014
Faculty [Member]
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Oct. 31, 2012
Issuance One October 2012 [Member]
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Oct. 31, 2012
Issuance Two October 2012 [Member]
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Oct. 31, 2012
Michael Mathews [Member]
Issuance One October 2012 [Member]
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Oct. 31, 2012
Michael Mathews [Member]
Issuance Two October 2012 [Member]
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Oct. 31, 2012
Brad Powers [Member]
Issuance One October 2012 [Member]
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Oct. 31, 2012
Brad Powers [Member]
Issuance Two October 2012 [Member]
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Oct. 31, 2012
David Garrity [Member]
Issuance One October 2012 [Member]
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Oct. 31, 2012
David Garrity [Member]
Issuance Two October 2012 [Member]
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Oct. 31, 2012
Dr. Gerald Williams [Member]
Issuance Two October 2012 [Member]
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Nov. 30, 2012
Director [Member]
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Jul. 31, 2014
2012 Equity Incentive Plan [Member]
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Jul. 02, 2014
2012 Equity Incentive Plan [Member]
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May 14, 2013
2012 Equity Incentive Plan [Member]
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Jan. 16, 2013
2012 Equity Incentive Plan [Member]
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Sep. 28, 2012
2012 Equity Incentive Plan [Member]
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Mar. 13, 2012
2012 Equity Incentive Plan [Member]
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||||||||||||||||||||||||||||||||||||
Equity Incentive Plan, shares authorized | 14,300,000 | 14,300,000 | 9,300,000 | 8,000,000 | 5,600,000 | 2,500,000 | ||||||||||||||||||||||||||||||||
Equity Incentive Plan, shares remaining | 613,588 | |||||||||||||||||||||||||||||||||||||
Stock options issued during period | 658,914 | 3,778,711 | 6,777,967 | 175,000 | 20,000 | 75,000 | 680,692 | 547,618 | 288,911 | 166,666 | 255,773 | 166,666 | 136,008 | 166,666 | 47,620 | 62,857 | ||||||||||||||||||||||
Issuance of stock options to officers to settle accrued payroll | $ 238,562 | |||||||||||||||||||||||||||||||||||||
Options granted, exercise price | $ 0.35 | $ 0.35 | $ 0.17 | $ 0.35 | $ 1.00 | $ 0.50 | $ 0.35 | $ 0.35 | $ 0.35 | $ 0.35 | $ 0.35 | $ 0.35 | $ 0.35 | $ 0.35 | ||||||||||||||||||||||||
Vested options | 910,214 | |||||||||||||||||||||||||||||||||||||
Option expiration period | 5 years | 5 years | 5 years | 5 years | 3 years | 5 years | 5 years | 5 years | 5 years | 5 years | 5 years | 5 years | ||||||||||||||||||||||||||
Fair value of stock options granted | 79,070 | 332,545 | 1,747,007 | 57,750 | 95,600 | 2,000 | 9,000 | |||||||||||||||||||||||||||||||
Amount of debt forgiven from related party | 22,000 | |||||||||||||||||||||||||||||||||||||
Number of stock options repriced from $1.00 to $0.35 | 1,705,000 | |||||||||||||||||||||||||||||||||||||
Weighted average grant-date fair value of stock options granted | $ 0.06 | |||||||||||||||||||||||||||||||||||||
Unrecognized compensation cost | 767,237 | 622,536 | ||||||||||||||||||||||||||||||||||||
Weighted average recognition period | 1 year 6 months | 4 years | ||||||||||||||||||||||||||||||||||||
Share based compensation expense | 96,455 | 148,608 | 153,818 | 81,605 | 252,057 | 748 | 748 | 95,600 | 244 | 2,968 | ||||||||||||||||||||||||||||
Award Modification, Incremental Compensation Cost | $ 15,750 | $ 600 |