Stockholders' Equity (Deficiency) (Stock Warrants Narrative) (Details) (USD $)
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1 Months Ended | 3 Months Ended | 4 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 1 Months Ended | 1 Months Ended | 1 Months Ended | 1 Months Ended | 1 Months Ended | 1 Months Ended | 3 Months Ended | 4 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended | 1 Months Ended | |||||||||||||||||||||||||||||||||||||||||||
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Jul. 31, 2013
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Apr. 30, 2013
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Feb. 28, 2013
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Dec. 30, 2012
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Sep. 30, 2012
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Apr. 30, 2012
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Jul. 31, 2014
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Jul. 31, 2013
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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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Aug. 31, 2012
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Jul. 31, 2014
Warrant [Member]
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Apr. 30, 2014
Warrant [Member]
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Sep. 30, 2013
Laidlaw and Co [Member]
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Apr. 30, 2013
Laidlaw and Co [Member]
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Sep. 30, 2012
Laidlaw and Co [Member]
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Aug. 31, 2012
Laidlaw and Co [Member]
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Mar. 31, 2014
Board of Directors [Member]
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Apr. 30, 2014
Board of Directors [Member]
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Jul. 31, 2014
Institutional Investor [Member]
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Apr. 30, 2014
Institutional Investor [Member]
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Sep. 30, 2013
Institutional Investor [Member]
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Mar. 31, 2014
Institutional Investor [Member]
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Apr. 30, 2014
Director [Member]
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Mar. 31, 2014
Director [Member]
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Oct. 31, 2012
Firm Two [Member]
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Jul. 31, 2013
Firm Two [Member]
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Feb. 28, 2013
Common Stock [Member]
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Dec. 30, 2012
Common Stock [Member]
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Sep. 30, 2012
Common Stock [Member]
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Jul. 31, 2014
Common Stock [Member]
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Apr. 30, 2013
Common Stock [Member]
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Apr. 30, 2014
Common Stock [Member]
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Dec. 31, 2012
Common Stock [Member]
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Apr. 30, 2013
Common Stock [Member]
Laidlaw and Co [Member]
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Sep. 30, 2012
Common Stock [Member]
Laidlaw and Co [Member]
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Mar. 31, 2014
Common Stock [Member]
Board of Directors [Member]
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Jul. 31, 2014
Common Stock [Member]
Institutional Investor [Member]
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Apr. 30, 2014
Common Stock [Member]
Institutional Investor [Member]
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Apr. 30, 2014
Common Stock [Member]
Director [Member]
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Sep. 30, 2012
Common Stock [Member]
Director [Member]
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Oct. 31, 2012
Common Stock [Member]
Firm Two [Member]
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Feb. 28, 2013
Warrant [Member]
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Dec. 30, 2012
Warrant [Member]
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Dec. 31, 2012
Warrant [Member]
|
Oct. 31, 2012
Warrant [Member]
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Apr. 30, 2014
Warrant [Member]
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Sep. 30, 2013
Warrant [Member]
Laidlaw and Co [Member]
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Apr. 30, 2013
Warrant [Member]
Laidlaw and Co [Member]
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Mar. 31, 2013
Warrant [Member]
Laidlaw and Co [Member]
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Sep. 30, 2012
Warrant [Member]
Laidlaw and Co [Member]
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Jun. 30, 2012
Warrant [Member]
Laidlaw and Co [Member]
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Feb. 29, 2012
Warrant [Member]
Laidlaw and Co [Member]
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Mar. 31, 2014
Warrant [Member]
Board of Directors [Member]
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Jul. 31, 2014
Warrant [Member]
Institutional Investor [Member]
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Apr. 30, 2014
Warrant [Member]
Institutional Investor [Member]
|
Sep. 30, 2013
Warrant [Member]
Institutional Investor [Member]
|
Apr. 30, 2014
Warrant [Member]
Director [Member]
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Oct. 31, 2012
Warrant [Member]
Firm Two [Member]
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Stockholders Equity [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Shares purchased for price protection | 915,429 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Price per share | $ 0.19 | $ 0.19 | $ 0.19 | $ 0.35 | $ 0.3325 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Original warrants held | 456,000 | 426,500 | 14,451,613 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Exercise price of warrants | $ 0.50 | $ 0.3325 | $ 0.50 | $ 0.50 | $ 1.00 | $ 0.3325 | $ 0.50 | $ 0.3325 | $ 1.00 | $ 0.155 | $ 0.50 | $ 0.35 | $ 0.50 | $ 0.3325 | $ 0.50 | $ 0.50 | $ 0.19 | $ 0.60 | |||||||||||||||||||||||||||||||||||||||||||
Issuance of common shares and warrants for services, shares | 1,347,368 | 100,000 | 100,000 | 100,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Option expiration period | 5 years | 5 years | 5 years | 5 years | 5 years | 5 years | 5 years | 5 years | 5 years | 5 years | 5 years | ||||||||||||||||||||||||||||||||||||||||||||||||||
Issuance of common shares and warrants for services | $ 43,000 | $ 43,000 | $ 100 | $ 8,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Exercisable warrants issued | 1,833,770 | 150,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Exercisable warrants issued, fair value | 15,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Stock-based compensation | 97,203 | 149,356 | 154,062 | 81,605 | 608,429 | 347,657 | 4,500 | 15,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
Warrants issued to a placement agent as a fee related to prior investments | 1,115,026 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Warrant value recorded as debt discount | 389,565 | 389,565 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Conversion of notes payable, shares | 142,357 | 20,000 | 5,130,795 | 6,736,842 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Fees Paid | 207,500 | 25,000 | 117,846 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Warrant value recorded as debt issue cost | 94,316 | 94,316 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Professional fees | 59,158 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Exercise offering | 4,231,840 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Warrant exercise offering exercise price | $ 0.19 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Warrants exercised | 804,049 | 7,006 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Warrant modification expense | 156,952 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Shares issued for price protection, shares | 4,516,917 | 3,473,259 | 3,270,678 | 4,516,917 | 3,473,259 | 5,178,947 | 2,662,139 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Issuance of common shares and warrants for cash, net of offering costs | $ 8,750 | $ 519,370 | $ 530,337 | $ 1,041,540 | $ 3,025,236 | $ 522,170 | $ 2,494,899 | $ 6,000 | $ 1,631,500 | $ 50,000 | $ 100,000 | $ 3,329 | $ 9,920 | $ 212,000 | |||||||||||||||||||||||||||||||||||||||||||||||
Issuance of common shares and warrants for cash, net of offering costs, shares | 1,614,286 | 2,042,856 | 3,329,503 | 9,920,000 | 1,715,217 | 7,877,144 | 3,157,895 | 10,525,809 | 263,158 | 526,318 | 605,716 | 807,143 | 1,021,432 | 857,609 | 3,938,570 | 389,000 | 3,157,895 | 5,262,907 | 263,158 | 526,318 |