Stockholders' Equity - Additional Information (Detail) - USD ($)
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1 Months Ended |
12 Months Ended |
Jul. 01, 2016 |
Aug. 31, 2015 |
Aug. 31, 2014 |
Dec. 31, 2016 |
Dec. 31, 2015 |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Option outstanding under 2009 stock incentive plan |
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650,000
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| Total stock based compensation expense related to Restricted Stock Units and stock options |
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$ 3,563,675
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$ 1,721,485
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| Warrant share, issued |
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53,093,902
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0
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| Number of outstanding common stock warrants |
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56,685,805
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| Weighted average exercise price of outstanding common stock warrants |
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$ 0.11
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| Weighted average remaining life of outstanding common stock warrants |
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3 years 11 months 27 days
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| Board Members and Officers [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Stock options granted during the period |
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650,000
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| Stock options exercise price |
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$ 0.24
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| Restricted Stock Units (RSUs) [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| RSUs issued to Chief Financial Officer |
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1,600,000
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| Options granted vesting period |
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3 years
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| Total stock based compensation expense related to Restricted Stock Units and stock options |
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$ 3,563,675
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$ 1,721,485
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| Unamortized stock-based compensation cost related to unpaid RSUs |
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$ 1,800,000
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| Restricted Stock Units (RSUs) [Member] | CEO [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| RSUs issued to Chief Financial Officer |
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7,000,000
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| RSUs vesting percentage |
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50.00%
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| Restricted Stock Units (RSUs) [Member] | Board of Directors and Management [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| RSUs issued to Chief Financial Officer |
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2,350,000
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| Restricted Stock Units (RSUs) [Member] | Management [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| RSUs issued to Chief Financial Officer |
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750,000
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| Restricted Stock Units (RSUs) [Member] | Board Members, Company Secretary and Chief Compliance Officer [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Restricted stock units granted during the period |
650,000
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| Stock options granted during the period |
650,000
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| Stock options exercise price |
$ 0.24
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| Employee Stock Option [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Options granted vesting period |
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3 years
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| Period during which options are exercisable |
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10 years
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| Employee Stock Option [Member] | More Than 10% Common Stock Owners [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Exercise price as percentage of fair market value of shares |
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110.00%
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| Minimum percentage of the company's voting stock ownership for 110% exercise price of stock options |
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10.00%
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| Employee Stock Option [Member] | Minimum [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Exercise price as percentage of fair market value of shares |
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100.00%
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| Employee Stock Option [Member] | Maximum [Member] | More Than 10% Common Stock Owners [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Period during which options are exercisable |
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5 years
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| 2009 Stock Incentive Plan [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Option outstanding under 2009 stock incentive plan |
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0
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| Equity Incentive Plan [Member] | 2014 [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Shares authorized to be issued under Equity Incentive Plan |
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32,583,475
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| Equity Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member] | 2014 [Member] | CEO [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Restricted stock units granted during the period |
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15,041,738
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| Equity Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member] | 2014 [Member] | Board Members and Officers [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Restricted stock units granted during the period |
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1,500,000
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