|
Net Loss Per Common Share - Computations of Diluted Weighted Average Shares Outstanding (Detail)
|
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2014
|
Mar. 31, 2013
|
|
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Total of weighted average shares outstanding | 8,305,219 | 5,172,331 |
|
Unvested Restricted Stock [Member]
|
||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Total of weighted average shares outstanding | 5,009,512 | 0 |
|
Warrants to Purchase Common Stock [Member]
|
||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Total of weighted average shares outstanding | 711,895 | 1,188,147 |
|
Options to Purchase Common Stock [Member]
|
||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Total of weighted average shares outstanding | 2,583,812 | 3,984,184 |