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v3.3.1.900

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands | Total | Common stock [Member] | Additional paid-in capital [Member] | Accumulated comprehensive income (deficit) [Member]
--- | --- | --- | --- | ---
BALANCE at Dec. 31, 2012 | $ 42,662 | $ 36 | $ 211,165 | $ (168,539)
BALANCE, Shares at Dec. 31, 2012 |  | 35,873,000 |  |
Non cash compensation recognized on stock options and ESPP | 168 |  | 168 |
Restricted stock grants, net of cancellations | 3,365 | $ 1 | 3,364 |
Restricted stock grants, net of cancellations, shares |  | 1,179,000 |  |
Cancellation of shares for payment of withholding tax | (114) |  | (114) |
Cancellation of shares for payment of withholding tax, shares |  | (96,000) |  |
Employee stock purchase plan | 36 |  | 36 |
Employee stock purchase plan, shares |  | 38,000 |  |
Comprehensive loss | (27,946) |  |  | (27,946)
BALANCE at Dec. 31, 2013 | 18,171 | $ 37 | 214,619 | (196,485)
BALANCE, Shares at Dec. 31, 2013 |  | 36,994,000 |  |
Exercise of common stock options | $ 6 |  | 6 |
Exercise of common stock options, shares | 4,000 | 4,000 |  |
Non cash compensation recognized on stock options and ESPP | $ 157 |  | 157 |
Restricted stock grants, net of cancellations | 3,495 | $ 1 | 3,494 |
Restricted stock grants, net of cancellations, shares |  | 1,421,000 |  |
Cancellation of shares for payment of withholding tax | (391) |  | (391) |
Cancellation of shares for payment of withholding tax, shares |  | (292,000) |  |
Employee stock purchase plan | 21 |  | 21 |
Employee stock purchase plan, shares |  | 27,000 |  |
Issuance of common stock in a private placement | 5,242 | $ 7 | 5,235 |
Issuance of common stock in a private placement, shares |  | 6,846,000 |  |
Comprehensive loss | (11,799) |  |  | (11,799)
BALANCE at Dec. 31, 2014 | $ 14,902 | $ 45 | 223,141 | (208,284)
BALANCE, Shares at Dec. 31, 2014 | 45,000,891 | 45,000,000 |  |
Exercise of common stock options | $ 10 |  | 10 |
Exercise of common stock options, shares | 8,000 | 8,000 |  |
Non cash compensation recognized on stock options and ESPP | $ 186 |  | 186 |
Restricted stock grants, net of cancellations | 1,967 | $ 1 | 1,966 |
Restricted stock grants, net of cancellations, shares |  | 1,091,000 |  |
Cancellation of shares for payment of withholding tax | (458) |  | (458) |
Cancellation of shares for payment of withholding tax, shares |  | (394,000) |  |
Tax benefit deficiencies related to restricted stock expense | 5 |  | 5 |
Employee stock purchase plan | 17 |  | 17 |
Employee stock purchase plan, shares |  | 24,000 |  |
Comprehensive loss | (2,603) |  |  | (2,603)
BALANCE at Dec. 31, 2015 | $ 14,026 | $ 46 | $ 224,867 | $ (210,887)
BALANCE, Shares at Dec. 31, 2015 | 45,729,272 | 45,729,000 |  |

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