|
Computations of Basic and Diluted Per Share (Detail) (USD $)
In Thousands, except Share data |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
|
Jun. 30, 2012
|
Jun. 30, 2011
|
Jun. 30, 2012
|
Jun. 30, 2011
|
|
| Earnings Per Share Disclosure [Line Items] | ||||
| Net (loss) income | $ (4,983) | $ 200 | $ (7,962) | $ 609 |
| Basic weighted-average shares | 183,551,171 | 183,048,031 | 183,685,654 | 183,199,813 |
| Dilutive potential common shares | 3,957,885 | 3,459,265 | ||
| Weighted average common shares outstanding and dilutive potential common shares | 183,551,171 | 187,005,916 | 183,685,654 | 186,659,078 |
| Net (loss) income per share: | ||||
| Basic and diluted | $ (0.03) | $ 0.00 | $ (0.04) | $ 0.00 |
|
Common stock options
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| Earnings Per Share Disclosure [Line Items] | ||||
| Dilutive potential common shares | 2,221,995 | 1,891,950 | ||
|
Warrants to purchase common stock
|
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| Earnings Per Share Disclosure [Line Items] | ||||
| Dilutive potential common shares | 1,650,705 | 1,456,110 | ||
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Restricted shares
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| Earnings Per Share Disclosure [Line Items] | ||||
| Dilutive potential common shares | 85,185 | 111,205 | ||