Provision for Taxes - Additional Information (Detail) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Provision For Income Taxes [Line Items] | ||
| Net operating loss carry forwards | $ 94,000,000 | |
| Deferred tax benefit | $ 0 | $ 0 |
| Minimum [Member] | ||
| Provision For Income Taxes [Line Items] | ||
| Net operating loss expiration, Year | 2016 | |
| Maximum [Member] | ||
| Provision For Income Taxes [Line Items] | ||
| Net operating loss expiration, Year | 2035 | |