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STATEMENTS OF STOCKHOLDERS' EQUITY (USD $)
In Thousands, except Share data
Total
Preferred Stock [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance at Dec. 31, 2011 $ 7,476 $ 0 $ 212 $ 93,071 $ (85,807)
Beginning Balance, Shares at Dec. 31, 2011   0 21,208,162    
Stock option exercises , Shares 0        
Shareholder rights offering, net of costs 2,221   73 2,148  
Shareholder rights offering, net of costs, Shares     7,250,000    
Stock-based compensation 293     293  
Net loss (2,393)       (2,393)
Ending Balance at Dec. 31, 2012 7,597 0 285 95,512 (88,200)
Ending Balance, Shares at Dec. 31, 2012   0 28,458,162    
Stock option exercises 7     7  
Stock option exercises , Shares 23,000   23,334    
Stock-based compensation 242     242  
Net loss (2,478)       (2,478)
Ending Balance at Dec. 31, 2013 $ 5,368 $ 0 $ 285 $ 95,761 $ (90,678)
Ending Balance, Shares at Dec. 31, 2013   0 28,481,496