Stock-Based Compensation - Additional Information (Detail) - USD ($) | Jan. 26, 2018 | Jun. 30, 2017 | Mar. 31, 2017 | Jun. 30, 2017 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | |
Contractual term of stock options granted | | | | 10 years |
Percentage of market value of common stock, stock options exercise price | | | | 100.00% |
Percentage of market value of common stock, restricted stock award granted | | | | 100.00% |
Total unrecognized stock-based compensation | | $ 1,876,000 | | $ 1,876,000 |
Number of options granted | | | | 456,038 |
Exercise price for stock option issued | | | | $ 4.53 |
Former Chief Executive Officer [Member] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | |
Number of options granted | | | | 1,950,000 |
Exercise price for stock option issued | | | | $ 3.20 |
Stock option expiration date | | | | Jan. 26, 2022 |
Vesting term | | | | The Stock Options will vest based on the Company’s attainment of three average stock price benchmarks. The first 650,000 shares will vest if the Company’s average publicly traded stock price is over $6.00 for a sixty-consecutive calendar day period. The next 650,000 shares will vest if the Company’s average publicly traded stock price is over $7.00 for a sixty-consecutive calendar day period. The final 650,000 shares will vest if the Company’s average publicly traded stock price is over $8.00 for a sixty-consecutive calendar day period. The vesting of the Stock Options is cumulative. |
Former Chief Executive Officer [Member] | Tranche One [Member] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | |
Number of options granted | | | | 650,000 |
Exercise price for stock option issued | | | | $ 6 |
Former Chief Executive Officer [Member] | Tranche Two [Member] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | |
Number of options granted | | | | 650,000 |
Exercise price for stock option issued | | | | $ 7 |
Former Chief Executive Officer [Member] | Tranche Three [Member] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | |
Number of options granted | | | | 650,000 |
Exercise price for stock option issued | | | | $ 8 |
2015 Equity Incentive Plan [Member] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | |
Shares of common stock allowed to be issued | | 4,656,587 | | 4,656,587 |
Stock Options [Member] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | |
Total unrecognized stock-based compensation | | $ 2,140,000 | | $ 2,140,000 |
Stock-based compensation awards, weighted-average period recognized | | | | 3 years 4 months 20 days |
Stock Options [Member] | Minimum [Member] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | |
Stock-based compensation award, vesting period | | | | 1 year |
Stock Options [Member] | Maximum [Member] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | |
Stock-based compensation award, vesting period | | | | 5 years |
Restricted Stock Awards [Member] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | |
Stock-based compensation award, vesting period | | | 1 year | 1 year |
Stock-based compensation awards, weighted-average period recognized | | | | 1 year 6 months 7 days |
Number of shares granted | | | 6,331 | 148,356 |
Weighted-average grant date fair value of restricted stock granted | | | $ 3.70 | $ 4.55 |
Restricted Stock Awards [Member] | Restricted Stock Agreement One [Member] | Former Chief Executive Officer [Member] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | |
Stock-based compensation award, vesting period | | | | 4 years |
Number of shares granted | | | | 850,000 |
Restricted Stock Awards [Member] | Restricted Stock Agreement One [Member] | Former Chief Executive Officer [Member] | Scenario, Forecast [Member] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | |
Number of shares expected to vest | 170,000 | | | |
Quarterly vesting rate | 42,500 | | | |
Restricted Stock Awards [Member] | Restricted Stock Agreement Two [Member] | Former Chief Executive Officer [Member] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | |
Number of shares granted | | 150,000 | | |
Number of shares expected to vest | | 150,000 | | 150,000 |
Fair value of shares granted | | $ 500,000,000 | | $ 500,000,000 |
Fair value of shares issued | | | | $ 572,313,000 |
Shares non transferable period | | | | 1 year |
Restricted stock award vested effective date | | | | May 18, 2017 |
Restricted Stock Awards [Member] | Minimum [Member] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | |
Stock-based compensation award, vesting period | | | | 1 year |
Restricted Stock Awards [Member] | Maximum [Member] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | |
Stock-based compensation award, vesting period | | | | 3 years |
Time Based Restricted Stock [Member] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | |
Stock-based compensation award, vesting period | | | 3 years | 3 years |
Number of shares granted | | | 62,500 | 218,000 |
Weighted-average grant date fair value of restricted stock granted | | | $ 3.15 | $ 4.60 |