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Consolidated Statements of Operations and Comprehensive Income (Loss) (unaudited) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Income Statement [Abstract]        
Net sales $ 8,138 $ 9,867 $ 30,207 $ 26,030
Cost of sales 6,943 8,039 24,910 21,090
Gross profit 1,195 1,828 5,297 4,940
Operating expenses:        
Selling, general and administrative 1,798 1,572 5,320 5,114
Research and development 125 221 509 1,119
Total operating expenses 1,923 1,793 5,829 6,233
Operating income (loss) (728) 35 (532) (1,293)
Other income (expense):        
Other income (expense) 119 (2) 117 584
Interest, net (24) 4 (51) 15
Income (loss) before provision for income taxes (633) 37 (466) (694)
Provision for income taxes   (3) (3) (28)
Net income (loss) (633) 34 (469) (722)
Net income (loss) per share:        
Basic $ (0.04) $ 0.00 $ (0.03) $ (0.05)
Diluted $ (0.04) $ 0.00 $ (0.03) $ (0.05)
Weighted-average number of common shares outstanding:        
Basic 14,357 14,184 14,311 14,184
Diluted 14,357 14,199 14,311 14,184
Comprehensive income (loss):        
Net income (loss) (633) 34 (469) (722)
Foreign currency translation adjustments (150) (8) (158) (10)
Comprehensive income (loss) $ (783) $ 26 $ (627) $ (732)