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Consolidated Statements Of Changes In Shareholders' Equity (USD $) In Thousands, except Share data | Ordinary Shares [Member] | Additional Paid-In Capital [Member] | Treasury Shares At Cost [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Accumulated Deficit [Member] | Total
--- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2009 | $ 92 | $ 291,736 | $ (20,091) | $ 100 | $ (90,931) | $ 180,906
Balance, shares at Dec. 31, 2009 | 34,287,893 |  |  |  |  |
Exercise of options | 3 | 4,932 |  |  |  | 4,935
Exercise of options, shares | 979,982 |  |  |  |  |
Share-based compensation expense |  | 4,207 |  |  |  | 4,207
Other comprehensive income (loss), net |  |  |  | 59 |  | 59
Net income (loss) |  |  |  |  | 14,062 | 14,062
Balance at Dec. 31, 2010 | 95 | 300,875 | (20,091) | 159 | (76,869) | 204,169
Balance, shares at Dec. 31, 2010 | 35,267,875 |  |  |  |  |
Exercise of options | 2 | 4,472 |  |  |  | 4,474
Exercise of options, shares | 1,057,122 |  |  |  |  |
Share-based compensation expense |  | 6,564 |  |  |  | 6,564
Other comprehensive income (loss), net |  |  |  | (502) |  | (502)
Net income (loss) |  |  |  |  | (53,654) | (53,654)
Balance at Dec. 31, 2011 | 97 | 311,911 | (20,091) | (343) | (130,523) | 161,051
Balance, shares at Dec. 31, 2011 | 36,324,997 |  |  |  |  |
Exercise of options | 1 | 735 |  |  |  | 736
Exercise of options, shares | 240,171 |  |  |  |  |
Share-based compensation expense |  | 5,460 |  |  |  | 5,460
Other comprehensive income (loss), net |  |  |  | (147) |  | (147)
Net income (loss) |  |  |  |  | (23,391) | (23,391)
Balance at Dec. 31, 2012 | $ 98 | $ 318,106 | $ (20,091) | $ (490) | $ (153,914) | $ 143,709
Balance, shares at Dec. 31, 2012 | 36,565,168 |  |  |  |  |

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