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Consolidated Statements of Shareholders' Equity (USD $) In Thousands, except Share data | Total | Common Stock | Additional Paid-in Capital | Accumulated Other Comprehensive Income | Retained Earnings (Accumulated Deficits)
--- | --- | --- | --- | --- | ---
Balances at Dec. 31, 2008 | $ 16,789 | $ 1 | $ 65,865 | $ 251 | $ (49,328)
Balances, shares at Dec. 31, 2008 |  | 14,835 |  |  |
Issuance of common stock under rights offering | 3,344 |  | 3,344 |  |
Issuance of common stock under rights offering, shares |  | 5,168 |  |  |
Issuance of common stock | 153 |  | 153 |  |
Issuance of common stock, shares |  | 228 |  |  |
Issuance of common stock under employee stock option purchase plan | 11 |  | 11 |  |
Issuance of common stock under employee stock option purchase plan, shares |  | 19 |  |  |
Issuance of common stock for acquisition of subsidiary | 1,239 |  | 1,239 |  |
Issuance of common stock for acquisition of subsidiary, shares |  | 1,000 |  |  |
Stock-based compensation | 624 |  | 624 |  |
Warrants issued for financing | 137 |  | 137 |  |
Foreign currency translation adjustments | 223 |  |  | 223 |
Net loss | (11,015) |  |  |  | (11,015)
Balances at Dec. 31, 2009 | 11,505 | 1 | 71,373 | 474 | (60,343)
Balances, shares at Dec. 31, 2009 |  | 21,250 |  |  |
Issuance of common stock under rights offering | 1,421 |  | 1,421 |  |
Issuance of common stock | 1,195 |  | 1,195 |  |
Issuance of common stock, shares |  | 948 |  |  |
Issuance of common stock under employee stock option purchase plan | 15 |  | 15 |  |
Issuance of common stock under employee stock option purchase plan, shares |  | 20 |  |  |
Stock-based compensation | 552 |  | 552 |  |
Stock options exercised | 8 |  | 8 |  |
Stock options exercised, shares |  | 14 |  |  |
Warrants issued for financing | 528 |  | 528 |  |
Warrants exercised | 2 |  | 2 |  |
Warrants exercised, shares |  | 1,730 |  |  |
Foreign currency translation adjustments | (51) |  |  | (51) |
Net loss | (8,517) |  |  |  | (8,517)
Balances at Dec. 31, 2010 | 6,658 | 1 | 75,094 | 423 | (68,860)
Balances, shares at Dec. 31, 2010 | 23,962,000 | 23,962 |  |  |
Issuance of common stock under rights offering | 0 |  |  |  |
Issuance of common stock under rights offering, shares |  | 0 |  |  |
Issuance of common stock | 463 |  | 463 |  |
Issuance of common stock, shares |  | 412 |  |  |
Issuance of common stock under employee stock option purchase plan | 47 |  | 47 |  |
Issuance of common stock under employee stock option purchase plan, shares |  | 157 |  |  |
Stock-based compensation | 319 |  | 319 |  |
Stock-based compensation, shares |  | 215 |  |  |
Stock options exercised, shares |  | 7 |  |  |
Warrants issued for financing | 33 |  | 33 |  |
Warrants exercised | 6 |  | 6 |  |
Warrants exercised, shares |  | 160 |  |  |
Foreign currency translation adjustments | (3) |  |  | (3) |
Net loss | (6,055) |  |  |  | (6,055)
Balances at Dec. 31, 2011 | $ 1,468 | $ 1 | $ 75,962 | $ 420 | $ (74,915)
Balances, shares at Dec. 31, 2011 | 24,913,000 | 24,913 |  |  |

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