Components of Net Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Deferred tax assets: | ||
| Share-based compensation | $ 99 | |
| Accrued bonuses/compensation | 1,839 | |
| Start-up costs | 106 | |
| Loss carry-forwards | 15,214 | |
| Total deferred tax assets | 17,258 | |
| Valuation allowance | (13,056) | |
| Net deferred tax assets | 4,202 | |
| Deferred tax liabilities: | ||
| Property and equipment | (2,430) | |
| Deferred revenue | (649) | |
| Mobilization | (233) | |
| Other deferred tax liability | (5) | |
| Total deferred tax liabilities | (3,317) | |
| Net deferred tax asset ( liability) | $ 885 | |
| Predecessor | ||
| Deferred tax assets: | ||
| Accrued bonuses/compensation | $ 171 | |
| Start-up costs | 123 | |
| Loss carry-forwards | 7,161 | |
| Other | 74 | |
| Total deferred tax assets | 7,529 | |
| Valuation allowance | (7,161) | |
| Net deferred tax assets | 368 | |
| Deferred tax liabilities: | ||
| Property and equipment | (2,852) | |
| Total deferred tax liabilities | (2,852) | |
| Net deferred tax asset ( liability) | $ (2,484) |