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Stock Options and Warrants - Additional Information (Detail) (USD $)
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9 Months Ended | 0 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 9 Months Ended | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Feb. 28, 2014
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Feb. 28, 2013
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Feb. 28, 2014
Minimum
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Feb. 28, 2014
Maximum
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Feb. 28, 2014
Telecommunications services provided
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Oct. 23, 2013
Private Equity Offering
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Feb. 28, 2014
Private Equity Offering
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Feb. 28, 2014
Private Equity Offering
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Feb. 28, 2014
Private Equity Offering
After amendment
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Feb. 28, 2014
Stock Options
Consultant
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Feb. 28, 2014
2012 Equity Incentive Plan
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Feb. 28, 2013
2012 Equity Incentive Plan
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Feb. 28, 2014
2012 Equity Incentive Plan
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Feb. 28, 2013
2012 Equity Incentive Plan
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Feb. 28, 2014
2012 Equity Incentive Plan
Stock Options
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Feb. 28, 2014
2012 Equity Incentive Plan
Stock Options
Directors And Employees
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Feb. 28, 2014
2012 Equity Incentive Plan
Stock Options
Directors And Employees
Minimum
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Feb. 28, 2014
2012 Equity Incentive Plan
Stock Options
Directors And Employees
Maximum
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Feb. 28, 2014
2012 Equity Incentive Plan
Stock Options
Director
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Feb. 28, 2014
2012 Equity Incentive Plan
Stock Options
Employees
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Feb. 28, 2014
2012 Equity Incentive Plan
Stock Options 2
Director
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||||||||||||||||||
| Authorized shares that can be purchased for options and warrants issued | 7,600,000 | 7,600,000 | |||||||||||||||||||
| Shares available for future issuance | 3,000,000 | ||||||||||||||||||||
| Shares available for future stock-based grants | 1,538,903 | ||||||||||||||||||||
| Stock options , shares granted | 18,114,156 | 305,000 | 299,452 | ||||||||||||||||||
| Stock options granted, exercise price | $ 0.74 | $ 0.75 | $ 0.80 | $ 1.09 | |||||||||||||||||
| Percentage of option awards vesting | 25.00% | 33.33% | |||||||||||||||||||
| Stock options, vesting period | 1 year | ||||||||||||||||||||
| Stock options, term | 5 years | ||||||||||||||||||||
| Grant date fair value of options | $ 0.43 | $ 0.49 | |||||||||||||||||||
| Stock options, termination date | Sep. 04, 2018 | ||||||||||||||||||||
| Stock options, number of shares vested on date of issuance | 50,000 | ||||||||||||||||||||
| Stock options, number of shares vested monthly after initial issuance | 15,000 | ||||||||||||||||||||
| Consulting agreement term | 6 months | 18 months | |||||||||||||||||||
| Stock warrants exercised | $ 50,000 | ||||||||||||||||||||
| Warrants exercise price per share | $ 1.00 | ||||||||||||||||||||
| Proceeds from exercise of warrants | 50,000 | 192,500 | |||||||||||||||||||
| Number of warrants issued | 50,000 | ||||||||||||||||||||
| Exercisable warrants, exercise price | 0.75 | 0.75 | 0.75 | 0.75 | 0.75 | ||||||||||||||||
| Exercisable warrants, expiry date | Nov. 01, 2016 | ||||||||||||||||||||
| Number of common stock warrants issued | 11,153,850 | 11,153,850 | 4,940,092 | ||||||||||||||||||
| Proceeds from units sold at private equity offering | 14,500,000 | 14,500,000 | |||||||||||||||||||
| Purchase Price of warrant | 1.30 | 1.30 | |||||||||||||||||||
| Number of shares issued | 2 | 20,989,494 | 2 | ||||||||||||||||||
| Warrant to purchase common share | 1 | 1 | 1 | ||||||||||||||||||
| Exercisable warrants, expire period | 5 years | 7 years | |||||||||||||||||||
| Grant date fair value of warrants | $ 1.03 | ||||||||||||||||||||
| Compensation expense related to stock options and warrants | 298,000 | 473,000 | 784,400 | 2,827,000 | |||||||||||||||||
| Grant date fair value of options | 417,000 | 378,000 | 1,991,400 | 8,773,000 | |||||||||||||||||
| Grant date fair value of warrants vested | 417,000 | 378,000 | 1,991,400 | 8,773,000 | |||||||||||||||||
| Unrecognized compensation costs | $ 1,390,200 | $ 1,390,200 | |||||||||||||||||||
| Weighted average period over which unrecognized compensation costs is expected to be recognized | 1 year 11 months 23 days | ||||||||||||||||||||