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CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)
In Thousands, except Share data, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Sales   $ 27,671 $ 25,411
Cost of sales   16,338 14,680
Gross profit   11,333 10,731
Gain on legal settlement      750
Other costs:      
Research and development   1,329 1,197
Professional services   1,439 1,250
Salaries and related costs   3,178 3,114
Selling, general and administrative   4,341 4,347
Legal awards and settlement      1,591
Total other costs   10,287 11,499
Income (loss) from operations   1,046 (18)
Other income (expense):      
Interest expense, net   (232) (237)
Issuance cost        
Fees associated with refinance        
Gain (loss) on change in fair value of derivative liabilities   20 287
Total other income (expense), net   (212) 50
Income (loss) before income taxes   834 32
Provision for current income taxes        
Benefit (provision) for deferred income taxes   (217) 77
Total benefit (provision) for income taxes - net   (217) 77
Net income (loss) (4,339) 617 109
Accretion of preferred shares        
Deemed dividend on beneficial conversion feature        
Net income (loss) attributable to common shareholders   617 109
Earnings (loss) per share      
Basic (in dollars per share)   $ 0.04 $ 0.01
Diluted (in dollars per share)   $ 0.03 $ 0.01
Weighted average number of shares outstanding - basic (in shares)   17,631 17,597
Weighted average number of shares outstanding - dilutive (in shares)   17,787 17,669
Restated
      
Sales 23,660    
Cost of sales 14,462    
Gross profit 9,198    
Gain on legal settlement       
Other costs:      
Research and development 1,260    
Professional services 1,835    
Salaries and related costs 3,235    
Selling, general and administrative 4,894    
Legal awards and settlement 1,640    
Total other costs 12,864    
Income (loss) from operations (3,666)    
Other income (expense):      
Interest expense, net (237)    
Issuance cost (664)    
Fees associated with refinance (543)    
Gain (loss) on change in fair value of derivative liabilities (842)    
Total other income (expense), net (2,286)    
Income (loss) before income taxes (5,952)    
Provision for current income taxes       
Benefit (provision) for deferred income taxes 1,613    
Total benefit (provision) for income taxes - net 1,613    
Net income (loss) (4,339)    
Accretion of preferred shares (39)    
Deemed dividend on beneficial conversion feature (2,616)    
Net income (loss) attributable to common shareholders $ (6,994)    
Earnings (loss) per share      
Basic (in dollars per share) $ (0.40)    
Diluted (in dollars per share) $ (0.40)    
Weighted average number of shares outstanding - basic (in shares) 17,670    
Weighted average number of shares outstanding - dilutive (in shares) 17,670