Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATED STATEMENT OF CHANGE IN EQUITY

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CONDENSED CONSOLIDATED STATEMENT OF CHANGE IN EQUITY - 6 months ended Jun. 30, 2017 - USD ($)
$ in Thousands
Common stock
Additional paid in capital
Accumulated foreign currency translation adjustments
Accumulated unrealized gains (losses) on available for sale debt securities
Accumulated deficit
Total
Balance at the beginning of the period at Dec. 31, 2016 $ 683 $ 341,200 $ (14,249)   $ (161,492) $ 166,142
Balance at the beginning of the period (in shares) at Dec. 31, 2016 424,775,092          
Increase (Decrease) in Stockholders' Equity            
Net loss         (41,997) (41,997)
Issuance of stock $ 170 102,997       103,167
Issuance of stock (in shares) 136,201,338          
Issuance of shares upon exercise of stock options   31       31
Issuance of shares upon exercise of stock options (in shares) 126,696          
Foreign currency translation adjustments     (1,309)     (1,309)
Unrealized losses on available for sale debt securities       $ (1,296)   (1,296)
Share-based compensation expense   4,757       4,757
Balance at the end of the period at Jun. 30, 2017 $ 853 $ 448,985 $ (15,558) $ (1,296) $ (203,489) $ 229,495
Balance at the end of the period (in shares) at Jun. 30, 2017 561,103,126