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UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - 6 months ended Jun. 30, 2016 - USD ($) $ in Thousands | Total | Preferred Stock | Common Stock | Additional Paid-in Capital | Accumulated Deficit | Accumulated Other Comprehensive Income | Private Placement | Private Placement Preferred Stock | Private Placement Additional Paid-in Capital
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balance at beginning of period (in shares) at Dec. 31, 2015 |  | 4,029,502 | 13,915,691 |  |  |  |  |  |
Balance at beginning of period at Dec. 31, 2015 | $ (12,820) | $ 40 | $ 139 | $ 200,403 | $ (213,412) | $ 10 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |
Net loss | (4,261) |  |  |  | (4,261) |  |  |  |
Foreign currency translation adjustment | 0 |  |  |  | 10 | (10) |  |  |
Stock-based compensation | 141 |  |  | 141 |  |  |  |  |
Stock issued during period (in shares) |  |  | 257,467 |  |  |  |  | 2,365,243 |
Stock issued during period | 107 |  | $ 2 | 105 |  |  | $ 543 | $ 24 | $ 519
Dividends on preferred stock | (4,475) |  |  | (4,475) |  |  |  |  |
Conversion of preferred stock and preferred stock dividends (in shares) |  | (6,180,040) | 8,930,717 |  |  |  |  |  |
Conversion of preferred stock and preferred stock dividends | 4,475 | $ (62) | $ 90 | 4,447 |  |  |  |  |
Balance at end of period (in shares) at Jun. 30, 2016 |  | 214,705 | 23,103,875 |  |  |  |  |  |
Balance at end of period at Jun. 30, 2016 | $ (16,290) | $ 2 | $ 231 | $ 201,140 | $ (217,663) | $ 0 |  |  |

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