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Consolidated Statements of Operations and Comprehensive Income (Loss) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Income Statement [Abstract]        
Net sales $ 9,867 $ 5,373 $ 26,030 $ 25,842
Cost of sales 8,039 4,234 21,090 20,392
Gross profit 1,828 1,139 4,940 5,450
Operating expenses:        
Selling, general and administrative 1,572 1,804 5,114 5,262
Research and development 221 527 1,119 1,523
Total Operating expenses 1,793 2,331 6,233 6,785
Operating income (loss) 35 (1,192) (1,293) (1,335)
Other income (expense):        
Other income (expense) (2)   584 (65)
Interest, net 4 3 15 53
Income (loss) before provision for income taxes 37 (1,189) (694) (1,347)
Provision for income taxes (3)   (28) (2)
Net income (loss) 34 (1,189) (722) (1,349)
Net income (loss) per share:        
Basic $ 0.00 $ (0.08) $ (0.05) $ (0.09)
Diluted $ 0.00 $ (0.08) $ (0.05) $ (0.09)
Weighted-average number of common shares outstanding:        
Basic 14,184 14,184 14,184 14,184
Diluted 14,199 14,184 14,184 14,184
Comprehensive income (loss):        
Operations 34 (1,189) (722) (1,349)
Foreign currency translation adjustments (8) 59 (10) 102
Comprehensive income (loss) $ 26 $ (1,130) $ (732) $ (1,247)