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Consolidated Statements Of Operations (USD $)
In Thousands, except Share data, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Consolidated Statements Of Operations [Abstract]    
Net sales $ 51,940 $ 38,964
Cost of sales 44,785 35,308
Gross profit 7,155 3,656
Operating expenses:    
Research and development (577) (882)
Selling and marketing (2,508) (2,275)
General and administrative (5,780) (4,833)
Total operating expenses (8,865) (7,990)
Loss from domestic operations (1,710) (4,334)
Net equity income from foreign joint ventures' operations:    
Equity income from foreign joint ventures' operations 1,917 2,304
Foreign joint ventures' operations related expenses (437) (436)
Net equity income from foreign joint ventures' operations 1,480 1,868
Loss from domestic operations and net equity income from foreign joint ventures' operations (230) (2,466)
Other income (expense):    
Interest expense (183) (131)
Other, net (33) (187)
Total other expense, net (216) (318)
Loss before income taxes (446) (2,784)
(Provision for) benefit from income taxes (5,442) 1,090
Net loss $ (5,888) $ (1,694)
Net loss per common share:    
Basic and diluted $ (0.75) $ (0.22)
Weighted-average number of common shares outstanding:    
Basic and diluted 7,813,587 7,741,594