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Unaudited Pro Forma Include the Historical Statement of Operation (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Business Acquisition, Pro Forma Information [Line Items]        
Net Sales $ 115,321 $ 110,665 $ 233,732 $ 224,294
Loss before income taxes and equity in earnings (4,350) (1,345) (6,860) (1,930)
Net loss $ (2,910) $ (783) $ (4,987) $ (804)
Basic and diluted loss per common share $ (0.21) $ (0.06) $ (0.37) $ (0.06)