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v3.19.1

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' DEFICIT - USD ($) $ in Thousands | Total | Common Stock [Member] | Additional Paid-in Capital [Member] | Accumulated Deficit [Member] | Treasury Stock [Member] | Other Comprehensive Income (Loss)
--- | --- | --- | --- | --- | --- | ---
Balance beginning at Dec. 31, 2017 | $ (101,732) | $ 3,237 | $ 1,020,457 | $ (1,114,359) | $ (2,450) | $ (8,617)
Balance beginning (in shares) at Dec. 31, 2017 |  | 323,684,820 |  |  |  |
Non-cash compensation cost for stock options,RSUs, ESPP and restricted stock | 5,245 | $ 0 | 5,245 | 0 | 0 | 0
Exercise of stock options/Purchases under ESPP | 1,325 | $ 11 | 1,314 | 0 | 0 | 0
Exercise of stock options/Purchases under ESPP, shares |  | 1,108,210 |  |  |  |
Restricted stock cancelled | 0 | $ 0 | 0 | 0 | 0 | 0
Restricted stock cancelled, in shares |  | (18,750) |  |  |  |
Issuance of common stock, net of issuance costs | 42,599 | $ 224 | 42,375 | 0 | 0 | 0
Issuance of common stock, net of issuance costs, in shares |  | 22,430,136 |  |  |  |
Unrealized gain on marketable securities | 8 | $ 0 | 0 | 0 | 0 | 8
Foreign currency translation adjustment | (462) | 0 | 0 | 0 | 0 | (462)
Net loss | (46,352) | 0 | 0 | (46,352) | 0 | 0
Balance ending at Mar. 31, 2018 | (99,369) | $ 3,472 | 1,069,391 | (1,160,711) | (2,450) | (9,071)
Balance ending (in shares) at Mar. 31, 2018 |  | 347,204,416 |  |  |  |
Balance beginning at Dec. 31, 2017 | (101,732) | $ 3,237 | 1,020,457 | (1,114,359) | (2,450) | (8,617)
Balance beginning (in shares) at Dec. 31, 2017 |  | 323,684,820 |  |  |  |
Balance ending at Dec. 31, 2018 | (167,935) | $ 3,849 | 1,140,964 | (1,299,107) | (2,450) | (11,191)
Balance ending (in shares) at Dec. 31, 2018 |  | 384,906,037 |  |  |  |
Non-cash compensation cost for stock options,RSUs, ESPP and restricted stock | 5,558 | $ 0 | 5,558 | 0 | 0 | 0
Exercise of stock options/Purchases under ESPP | 942 | $ 10 | 932 | 0 | 0 | 0
Exercise of stock options/Purchases under ESPP, shares |  | 1,027,753 |  |  |  |
Issuance of common stock, net of issuance costs | 55,239 | $ 840 | 54,399 | 0 | 0 | 0
Issuance of common stock, net of issuance costs, in shares |  | 83,975,523 |  |  |  |
Unrealized gain on marketable securities | 5 | $ 0 | 0 | 0 | 0 | 5
Foreign currency translation adjustment | (1,174) | 0 | 0 | 0 | 0 | (1,174)
Net loss | (43,218) | 0 | 0 | (43,218) | 0 | 0
Balance ending at Mar. 31, 2019 | $ (150,583) | $ 4,699 | $ 1,201,853 | $ (1,342,325) | $ (2,450) | $ (12,360)
Balance ending (in shares) at Mar. 31, 2019 |  | 469,909,313 |  |  |  |

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