|
Income Taxes (Detail 2) (USD $)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Reconciliation of the U.S. statutory income tax rate to the Company's effective tax rate | |||
| Federal income tax (benefit) at statutory rate | (34.00%) | (34.00%) | (34.00%) |
| Change in Tax Rate | 2.10% | ||
| Permanent items | 1.00% | 4.90% | 0.40% |
| Other | 0.10% | (0.20%) | |
| Change in valuation allowance | 30.80% | 29.10% | 33.80% |
| Effective income tax rate | 0.00% | 0.00% | 0.00% |
| Unrecognized tax benefits related to interest and penalties accrued | $ 0 | ||