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CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Consolidated Statements Of Operations    
Sales $ 6,482 $ 5,696
Cost of sales 3,726 3,545
Gross profit 2,756 2,151
Other costs and expenses:    
Research and development 332 333
Professional services 258 453
Salaries and related costs 907 818
Selling, general and administrative 1,201 1,212
Total other costs and expenses 2,698 2,816
Income (loss) from operations 58 (665)
Interest expense, net (28) (55)
Loss on change in fair value of derivative liabilities (9,599) (34)
Total other expense, net (9,627) (89)
Loss before income taxes (9,569) (754)
Benefit (provision) for deferred income taxes (38) 345
Net loss (9,607) (409)
Accretion on convertible preferred stock (204)   
Net loss attributable to common shareholders $ (9,811) $ (409)
Loss per share    
Basic (in dollars per share) $ (0.55) $ (0.02)
Diluted (in dollars per share) $ (0.55) $ (0.02)
Weighted average number of shares outstanding - basic (in shares) 17,684 17,650
Weighted average number of shares outstanding - dilutive (in shares) 17,684 17,650