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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