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Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
REVENUES        
Product revenues $ 217 $ 72 $ 778 $ 152
Other revenues 0 0 0 300
Total revenues 217 72 778 452
COSTS OF SALES        
Costs of goods sold (50) (23) (209) (386)
Gross profit 167 49 569 66
OPERATING EXPENSES        
Selling, general and administrative 4,538 4,573 12,956 16,919
Research and development 683 2,178 3,632 10,639
Total operating expenses 5,221 6,751 16,588 27,558
Loss from operations (5,054) (6,702) (16,019) (27,492)
OTHER INCOME (EXPENSE)        
Change in fair value of warrant liability, net 519 (497) 1,612 2,345
Interest income 2 2 4 18
Other income (expense) (25) (9) (33) (404)
Net loss (4,558) (7,206) (14,436) (25,533)
LOSS PER COMMON SHARE        
Basic and diluted loss per common share (in dollars per share) $ (0.48) [1] $ (1.15) [1] $ (1.54) [1] $ (4.35) [1]
WEIGHTED AVERAGE COMMON SHARES        
Basic and diluted weighted average common shares outstanding (in shares) 9,447,887 [1] 6,254,312 [1] 9,391,793 [1] 5,875,490 [1]
OTHER COMPREHENSIVE INCOME (LOSS)        
Foreign currency translation adjustments (6) 15 (27) 384
Comprehensive loss $ (4,564) $ (7,191) $ (14,463) $ (25,149)
[1] Reflects a one-for- sixteen (1:16) reverse stock split effected on April 8, 2014.