Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATED STATEMENT OF CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY (UNAUDITED)

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CONDENSED CONSOLIDATED STATEMENT OF CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY (UNAUDITED) - 3 months ended Mar. 31, 2016 - USD ($)
$ in Thousands
Common Stock
Additional Paid-In Capital
Accumulated Deficit
Total
Beginning Balance, Shares at Dec. 31, 2015 694,396      
Beginning Balance, Amount at Dec. 31, 2015 $ 694 $ 229,456 $ (62,556) $ 167,594
Exercise of common stock options, Shares 20      
Exercise of common stock options, Amount   3   3
Stock-based compensation   719   719
Sale of common shares, Shares 9,812      
Sale of common shares, Amount $ 10 4,994   5,004
Unrealized gain on marketable securities       0
Exercise of warrants, Shares 27      
Exercise of warrants, Amount   35   35
Net loss     (4,012) (4,012)
Ending Balance, Shares at Mar. 31, 2016 704,255      
Ending Balance, Amount at Mar. 31, 2016 $ 704 $ 235,207 $ (4,012) $ 169,343